Re: dirty jersey cops
Well in the states you can report him to the proper authorities (see Paulk's post) now the angle he stopped at can be crucial if both your headlights and his was on the glare might be enough to eliminate the video footage of him smashing the mirror or that is what he is bargaining on but if they can clean it up a bit with filters they might get usable footage. My advise is that if he ticketed you after breaking the mirror that it is police harassment and thus the tickets should be voided and your mirror be replaced and you be compensated for the uncalled for stress. Go to the local courthouse and speak to the DA and see what happens.
(Ps If it was here in South Africa slip the Metrocop some cash and you are away yes they are that corrupt)