i have seen LEO's on "official use only" overpasses (NJ Turnpike a.k.a I-95) with laser guns, radioing to chase cars. im not entirely sure they were shooting at the rear, but its possible for sure.
this prompted me to move one of my heads to the back of my car. with my passive counter-measures, one head should be enough in the front.
maybe sometime soon i'll get another head for the front....
let me know what you guys think, as in if it could jam from like 0-300 ft or so.