In DC, you don't need a camera. Just look up coming out of the train stations.
That OH enticement thing scared the crap out of me. I am one of those stop and help, pick up hitcher types. A neighbor girl about 12 who's parents I went to school with was walking home in the rain last summer, I didn't think much of it, I stopped and offered her a ride. It is scary to think I could have been arrested for that, yet when her dads motorcycle broke down by my house the year before and I offered to assist it was legal.