Actually, the police a) pretty much won't do squat in response to something they didn't observe themselves (except for sending someone to keep an eye out for a reported drunk driver) unless it results in a collision, and b) don't seem to give a damn stopping tailgating. (They'll use it as an excuse for a nuisance stop, and they'll tack it onto whatever other charges after an accident, but they won't pull anyone over for it. *grrrrrr*)
Re: Mercy should be tempered with Justice...