As I'm coming off the 133 onto the NB 5 yesterday evening, I catch a persistent whiff of Ka from behind me. Traffic is thick (as always), so even though my head is spinning around like Linda Blair's I didn't spot any CHP. Also, the alert seemed to follow me for a couple miles until I took an exit. The signal was pretty weak (probably 4 bars or less) and intermittent, with several seconds between blips.
Was this a real CHP rolling with his radar active (in the middle of a rush hour traffic jam)? Or a false alert from another RD in a civilian vehicle behind me?