OK We have seen this type of behavior before.
You are not beat.
that is if you really want to get even.
You have the Internet @ your finger tips.
Now your @ the #1 Hot rodding site on the web.

Welcome to HOTRODDERS.COM
Now you can {after 20 posts} post a Company review to warn others of the shady dealing that this guy is doing
#2 you can write a WIKI article on this subject .
THEN you can call up or write or e mail your thief & make him aware that negative advertisement on the Internet is a very aggressive tool & it would be in his best interest to right the wrongs.
If you calm down & think things thru clearly things can be worked out most of the time.
Rob