AWFUL, AWFUL, AWFUL!

AWFUL, AWFUL, AWFUL!
I bring my SUV in loyally to the company for oil changes and the full inspections. The last time I brought it in to them they had checked off that they had done the full inspection and charged me the normal few hundred dollars.
When I got home I noticed that they had not rotated my tires. I looked on the sheet and they had checked it off that they did. Well, I knew they had not as I had a slow leak in one of them and forgot to mention it. When I called them to ask them about it they said "We knew you were going to change them anyways". I replied "If you didn't do this and you checked it off what else did you not do and charge me for it".