Bastard coated bastards with bastard filling

This morning we dropped off my car at the local Chevrolet dealership to finally get my dash panel replaced. We were told that it would take no longer than a day. Later this morning my husband was told I wouldn't get my car back until Friday. So, apparently Chevrolet exists in a temporal wormhole where the span of twenty-four hours takes you directly to Friday. And it's not like my husband didn't have several conversations with the tech last week where he was assured that the panel was available and would not have to be ordered. But lo and behold...it is not in stock and has to be ordered. Then they proceeded to give the hard sell and tried to suggest fixing the brakes and flushing various things (for an additional cost of several hundred dollars), when we specified very clearly at the time we dropped off the car was that all we were requesting and authorizing was a replacement instrument panel and oil change only. So not only do the people at the Chevrolet have a terrible sense of time, but lousy hearing and short memories as well. I had better get it back no later than Friday afternoon. I hate the idea of not having my car for a whole week...I can't wait until I have the money to get a new car and be done with all this freaking hassle.