Granted there is also the comeback of wrongful arrest if you do it, or excessive force but to put it into perspective.
This is acceptable force and is about as close a thing I can find on the net that is similar except I was straddling 2 of the guys.
http://www.machinehead-software.co.u...ns_arrest.html
And I wouldnt attempt to arrest you if you simply yelled at me, slapping my car is excessive.. but if I didnt see you then fair enough, prefer you let me know your there as opposed to mowing you over because your in my blind spot. It was more in response to the guy with the size nines.