If have no jammers and get shot at 1000-1500ft or more (about a quarter mile), immediately pull over and stop on the side of the road. Highly unlikely that the cop will come back against traffic to get to you, he will probably just sit on his ass, shrug, and find a new target. If he does start moving towards you, pop the hood and pretend to check stuff...say you noticed your cruise control stopped responding or something.