I doubt you are going to get much help in this subject,
However kismet could be used to "track" the wireless client given that it is within range of the card kismet is using.
The chances of this happening are probably slim at best.
As you have stated filing a police report and watching local ads is about the best you can hope for. Course if you have connections to the mob they may also be of service but that again is out of our ability to help.