I think the gal was working from some apartments and a neighbor complained about the volume of people going in and out, which prompted the bust.

You can never be too careful in terms of screening.

In general, when LE sets up a sting they want two things: Volume and control of the environment.  They can't really "set-up" in an out call scenario.  It would also take all night to bust three or four guys.  It's much easier to run an ad, set up in a hotel or motel, and bust everyone who shows up.

By the way, the scenario listed in the post below is actually an in call.  It's also the primary reason that I won't see girls who work out of a private residence.

who was moonlighting.  And that is the risk of a fixed location which does not have a cover story for the traffic.   Nosey neighbors are always a risk.