If it were me I would be on the phone with Bowtech and tell them about this 'dealer'. Tell them the entire story. And tell them the guy stole a new string from you and demand a new replacement string for your bow. Have them call the shop and get a new string on it. Bowtech can threaten him with no new bows.
I am planning on notifying Bowtech about this issue but not until I get my bow back.. If I thought I could get the string quicker I would of drove down this evening. I know I will never be back at that place ever again that is for sure. I do know a couple of people localy that could of put the string on it. I just couldn't get a hold of them so I went to this so called bow shop instead. Now I am kicking my butt for that mistake. I also could of taken a 2 hour drive to get another bow shop to do the work and would of had it taken care of with in about an hours time on average. I wished I did those could of right now though. It surely has me quite upset to say the least about it.