Ending was in Very Bad Taste
Misdirecting the audience with the cop who turns out to be a stripper was a joke done in very poor taste, in my opinion.
And yes, I realize it was likely intended by the writer/director to be black humor, but sorry it wasn't funny even in that sense and frankly, how you make any sort of successful joke about crimes of pedophilia is a very tall order. Best not to try it unless you're a writer who can pull it off. Rifkin clearly can't.
A really tasteless ending to an otherwise engaging flick.