AutoNation Chevrolet Laurel

They claim to have a shuttle or loaner service, but when I asked about it they said they don't do that, yet another service customer WAS offered a ride to work, when I asked again and pointed out another customer being offered a ride I was told that I must have mis-heard their conversation. It's had to mishear someone talking very loudly in the same room. The television in the waiting room was on a news program I found offensive and was at a very high volume, and when I asked for the channel to be changed or the volume lowered I was told they can't do that and they don't have a remote for that television. They said nothing when I pulled a chair under the TV, lowered the volume and changed the channel via the buttons on the front of the TV. I went in for an oil change, brakes acting odd, and my check engine light being on and for $100 was told that it was on because I have a locking gas cap, but they did not remove the gas cap to actually check, and the only thing they would do is to turn off the light, and if I put a GM gas cap on, then they might look at it again, for an additional $100. They claimed the oil change could not be done until the car cooled down, last time I checked an oil change needs to be done after the engine has been run and brought up to operating temperature. The service department refused to explain in detail was was done to my brakes-they would only read the brief description that was on the invoice, and also refused to show me any of the old parts of the things they claimed to have replaced. The service manager has never replied to any phone call, letter or fax regarding my visit, I escalated my concerns to Pontiac and GM, also with no reply.