I dont trust the service department here. I paid f...

I dont trust the service department here. I paid for a tire rotation and the tires were not rotated. I knew they weren't rotated because my front tire on my passengers side had a nail in it and after the "tire rotation" the tire with the nail was still on the front passenger's side. I talked to them and they offered me a free oil change and filter my next visit. I wonder how often they scam people like they scammed me?