I don't think Illinois uses any of it's helicopters for traffic, at least on a regular basis. I have never seen any that were black.
Illinois has a bevy of planes for "clocking" speeders, and the standard cruzing altitude is 8000'. The love to get people with radar detectors, cb radios, and volkswagen rabbits.
I never could figure out the rabbit thing.
The I-pass has been a problem for many, with wierd windshields, like Eric's. Several luxury cars have some odd tint on the window that is a reflective metal, an RF doesn't pass.
Solution is to bar code everyone's car or truck. Code reader can spot tolll charges, and also issue your speeding citations, This new plan will be aways out in the distant future. Rumor has it that Mike will be writing the programs for the DL06 based equipment. But only in his SPARE TIME. Let's see, projects already inclde kart, camaro, riding lawn mower, roulette game, portugese translater, looks like we are all safe until at least June.
regards.....casey