Sorry this happened to you, DTB.
I hope you can eventually remember the guys handle or number so you (or someone you know) can outline why he should never cross that line again.
As far as providing from your residence, a lot of people swear against it but, personally, I think it is much less risky than sharing an incall or hotel-ing it. Just make sure your home/incall is highly secure and well guarded - I'm talking 24hr onsite security/concierge, one way in/one way out for non-residents, FOBs and cameras for every entry, elevators and stairwell.
If someone can't get in OR out easily then I'd bet it's safer than sharing a place with a couple chicks who might decide to fcuk you over one sunny day or even keeping two separate places where a stalker could follow you from your incall to your home without any security barriers aside from your route.
Good luck finding out who it it was and getting it handled. Chin up!