Police would have come and checked it out. The guy most likely would have been arrested for outstanding warrents.
Tried to write a TER review of this experience, but the girl took her name out of her ads so TER won't let me post it. This girl has been posting in the Portland, ME area for several weeks. The content of the ads varies slightly, but she's been consistently using the phone number 207-929-0550. E.g.:
http://maine.backpage.com/FemaleEscorts/lovely-young-love-meeting-new-people-24/3879892
http://maine.backpage.com/FemaleEscorts/lets-meet-and-have-fun-24/3877822
She'll send you a cute photo, too, so I decided to TOFTT. Unfortunately this is totally a ripoff scam. The girl grabs the donation, says she has to go pee, but to make yourself comfortable. She never returns. Instead, a sleazy dude barges in and starts demanding to know what you're doing in his girlfriend's room.
Just hoping to help some others avoid a very lousy day
Police would have come and checked it out. The guy most likely would have been arrested for outstanding warrents.
What's a pay phone? 
Not a bad idea, and I could still do that. Do you think the cops would give shit?
MANY if not most providers post namelessly to BP to avoid reviews now, at least in Maine.
I will use my name and stand behind it, I have a great reputation as do many ladies that visit/frequent the area. Some of us have developed and branded ourselves and our name is synonymous with a certain quality/level of experience. While some may no longer wish to play into review culture for legal reasons, others avoid it to mask bad behavior.
There is good and bad in every segment of the community as well as every advertising venue.
Take what you need and leave the rest.
Grace
and you are the real deal, my dear. It's the others that advertise under false pretenses that make it difficult.