I always wanted to see someone (else!) do an experiment with the traffic cameras: go stand in the view of one, smile for the camera, pull out something illegal and use it, and then walk away. Perhaps to somewhere close by.
Would police come investigating? How soon? Would someone attempt to ID you in the video? Would they be able to pursue you and arrest you for the crime? Is there an expiration time (statute of limitations)? Does it matter that you are not on the road or in a vehicle?
I know these laws would be different from country to country, and I assume even from state to state or city to city. This bears watching, because once they hook the police, facebook, google, and “security” camera databases together we are definitely dealing with Big Brother.