Time to Lower the Bar?

Is it just me, or has the level of customer service around here gone down in the last few years?  For a few examples:
I've always taken my car to the dealership for service.  Some people tell me I'll pay more or pay for things I don't need by going to the dealership, but I always feel like I get treated fairly and I get good service there.  But this has been deteriorating over the past year or so.  Several months ago, I went in for an oil change.  While there, they told me one of my back brake lights was out, and that it's not just a regular light bulb so they'd have to order it and it would be pretty expensive.  I spare no expense for my car, so I told them to go ahead.  They called a week later and told me the part was in so I made an appointment and went in to have the light installed.  After about an hour, my name was called so I went up to the cashier and there was only a small charge for labor, none for parts.  I questioned this, she called the mechanic over, and he explained that the light bulb hadn't been out after all; it had just come unplugged during the oil change the week before.  Really?!  I just wasted an hour of my life because they unplugged something?!  Not cool.
A few months later I was in for an engine check, and my boss came in.  I asked him what he was doing there, and found out that he'd been in for an oil change a couple days earlier (on his almost brand new Jeep), and the mechanics had put in the wrong kind of oil and jammed up his engine. He played it off like it was no big deal, but I would have been ticked!
Two months ago I got a notice from Chrysler that I had an extended lifetime warranty on my fuel tank because of a problem that I - and other owners of my model year- have been experiencing, so I needed to get my fuel tank replaced.  I called the dealership to order the part.  They said they'd call when it came in, but I should call them, just in case.  A month went by and I didn't hear anything, so I called, and it was in.  Who knows how long it had been waiting for me?  So I made the appointment, planning an entire Saturday around this, since I would basically be carless for the day.  I took my car in at the appointed time, and got a ride from my parents so I wouldn't have to sit at the dealership for the whole day.  An HOUR AND A HALF later, the mechanic called to say he had just taken a look at my car, and it looked like I would need a new fuel tank, so he'd have to order that, and I'd need to schedule an appointment for when the part came in.  WHAT?!!!  What did he think I was doing there?!  First off, why, when I had an appointment, did it take him 1 1/2 hours to start looking at my car, and second, why did he not know why my car was there?!  I explained to him that the part had been ordered, I'd confirmed it was there, and that's why I had the appointment.  He quietly said he'd call right back.  A few minutes later he called to say he had found the part and he'd start working on my car.  Yeah, he'd better start working on my car!

Next- my sprinkler guys.  I like to think I can handle the small sprinkler repairs; I can turn on the sprinklers in the spring, put in risers, turn heads, etc.  But if there's any chance of making a mistake that will lead to water getting in my basement, I call the sprinkler guys.  I use a company I found a few years ago that I think is pretty expensive, but I've been impressed with them because I can schedule an appointment at any time, and they come exactly when they say they will.  They'll come before I have to leave for work, and they work quickly so I'm only a few minutes late for work.  But in the last three times I've called them, the closest they've been to on time was forty minutes late.  The first of those times wasn't really their fault.  It was a super cold day, and their gate, behind which all their trucks were locked, had completely frozen up.  They called and asked if I wanted to keep my appointment, so I at least appreciated the warning.  Two weeks ago, they were six hours late, so I basically spent my entire Saturday sitting at home waiting for the sprinkler guy to show up.  And I had to have them come- I had a broken valve that I definitely couldn't have fixed by myself, and I couldn't turn on my sprinklers til it was fixed so my lawn was burning.  The latest was this week.  I scheduled the first appointment of the day, so they couldn't possibly be late.  And yet, they managed to be an hour late.  And when I checked my sprinklers after they had left, I found that they had crossed wires or something, so now two of my zones come on at the same time.  I don't want that.  But I also don't want to call them back to fix it.  They've already charged me an arm and a leg this season.  I don't want to give them another limb and another day.  I'm so frustrated with service people!  In case you couldn't tell.