You know how women get emotional when they're filled with joy?..
Dear chap, your ministrations were so overwhelming she wept in epiphany because she came so hard she was transfixed!
Never just scarper.
If she's genuinely distressed then settle her down it might earn you brownie points if she gets back in the game, if she's done then get some of your dosh back.
If she's been trafficked well go with your conscience (I'd like to think I could dial it in anonymously (from her phone) and get her some help).
If she's on the con play out her game a little, it may include giving you some dosh back or it may be a total bitch, but at least get (some) of your money's worth out of here acting!