BTW Soybean - I do not trust anyone to do my tires except me. I've gotten my car back from the dealership after they've rotated and checked and the pressure on each tire has been off by as much as 5 pounds - each one different!
Good point. Actually, we should independently check various procedures performed by automotive service shops. I know a guy who discovered his oil level was dangerously low, even right after an oil change. And, I once has a shop re-do an oil change because they had grossly over-filled. I also experienced a situation where a local auto service shop changed automatic transmission fluid and did not fill to the proper level. When I discovered it and called them, the guy realized what had happened; he got interrupted by a telephone call while working on the car and forgot to finish putting in the transmission fluid.
BTW, why is this not in the Off topic section?