Surprised this is not 100% FUD. My Uncle was telling me about the farmer opposition to the Trail of the Coeur d'Alenes, and how all the farmland-billboard-propaganda was that a bike path would bring drugs and prostitution to their fine rural community.

Are you sure the problem is not your city, rather than the bike path?

I'm not sure a bike is a great way to pick up prostitutes, but that's just me.