I think you are missing something. The gesture was probably some sort of whacking off "here's what I want..." or "here's what I'm offering" motion that these fine gentlemen recognize. Maybe the signal wouldn't work with the right hand from that side. Or maybe his right hand was busy. It would be interesting to know which hand the senator normally beats himself with. Actually, I guess it wouldn't.
I can't imagine the humiliation. People behind keyboards speculating about the specific mechanics of your stall peeping, footsie, and obscene gestures. Time to go.
In all honesty, I thought that Sen. Craig was guilty and finally got caught.
Today, I think that the police officer should be facing a few criminal charges instead.