> and with the intent that they would never know if they were being surveilled or not. [...] there's no chilling effect caused by the selective and unknown application of surveillance; the cameras and computers "watch" every car equally.

I disagree. Nobody expects all camera footage to be reviewed by a person, so you never know if what the camera caught will ever be seen (or used against you). In that sense, it's just like the panopticon. You feel watched so you behave, but whether you are watched or not in that moment is unknown.