If they are the stock wheels, the best thing to do is to determine if he took the clear coat off of them.
You can tell if one part is shinny and the area he cleaned is all dulled down.
If this is the case, the only good way to repair them is to take down the clear coat with some
read this.
http://www.caswellplating.com/frames.../clearcoat.htm
After you strip it you can have them re-clear coated, they will look very nice!