Yeah, a lot of places, especially dealerships, give a big song and dance about "multi-point inspections", but then never do half the stuff. I don't think I've ever seen my battery terminals cleaned.
On my truck, CA has this stupid law that shops have to adjust the air pressure on all tires to manufacturer recommendations, even if you only go in for a smog check or something. If it drives on their lot and they touch it, they have to do the air pressure. At my old shop, I always knew they did it because Ford calls for 75psi in the rear, which I only inflate to if I'm gonna haul something, otherwise I keep them at 60psi. I took it to the dealership at my dad's recently, and when I went to deflate the rear tires, found that they were still at 60psi.
I generally check all work anytime I take a vehicle in, even if it's pulling the dipstick after an oil change to make sure the level is correct. I recently got new batteries for the truck, and because the dealership had a deal going on the batteries I wanted, I let them install them (dealership at my dad's again). I popped the hood to look at the batteries, and the driver's side battery wasn't even tied down. I let the service manager have a piece of my mind. I would not have been happy having a battery bounce around on my next long drive, and then having them try and make me responsible for the damage.