Not sure how much KY specifically charges but yes, doubtful he'll be able to swap without putting in an incentive...So the question to the OP is how much would you pay to get out of it? $500? $1000? etc...If it's not at least a thousand the best course of action is to keep it...Bonus in Cali is they can get the HOV sticker...Just be glad you didn't purchase it or you'd be looking at over a ten grand loss...