It's amazing that that took place and it might be worth checking with the BBB to see if there are any complaints filed against the dealiership.

I also agree that there are things that you could do yourself, not only for less money, but to be sure that the work was done. For example, I changed my oil and alternator yesterday (among other things, like t-bar crank, underbody touch up and reinstalling my freshly repainted skids). If I'd taken the truck in for this work, it would have been out the whole day and I'd be out at least a few hundred - as opposed to $30.