hedwards: It's a matter of jurisdiction, if he engaged in the activity in the city limits then the city would be the relevant jurisdiction. The places that I've heard of being legal are all in parts of the state where it's not legal, and they don't send anybody off property to engage in that sort of service.
orcishgamer: I have no idea how it's done down there. Most escorts around here afaik will come to you or will meet you at whatever "love nest" they maintain. Of course, around here, it's equally illegal. I think the high end girls get a blind eye turned towards them, though (maybe not in election years, who knows).
I think that would be the difference. Since it's legal in parts of the state, they stick to those parts. Around here it's illegal no matter where they do it, so they either go to you or you go to them, or at least that's my understanding.
The bigger reason why the legal ones don't go outside the establishment is the risk or rape and murder.