yes let them work on it BUT ask them in detail how they intend to fix it. I guess at the dealership There are good ways and quick-and-dirty ways of making a fix. Maybe find out for yourself the best paint shop in your area and let them advise you, possibly fix it, and send the bill to the dealer. They will like that maybe because it might get them future business, they will probably not overcharge the dealer either. Just a few ideas.