Absolutely! I did that to a dealer a few years ago for something similar. I was paying cash (well, company check) and when the dealer said there was nothing they could do about some paint damage, I tore up the sales paperwork AND the check and walked out the door. He actually chased me down and offered an upgraded vehicle at the same price.They need to put in writing that they will fix it to your satisfaction If not just cancel the deal. You have several days. Do not let them crap on you!!!!