No Tinfoil here.
1. As I said, the Loop Pairs are ALWAYS within direct sight of the light/camera towers, and in relatively close proximity; I'd guess within 1,000 feet, never much more. Certainly within decent "zoom" range.
2. "traffic studies" (remember Bridgegate?) are always short-lived, usually only a week or so, and are (still) characterized by those pneumatic hoses stretched across ALL lanes. And today, they simply do traffic-flow analysis either from the air, or by using those solar-powered ultrasonic or RADAR units that are prominently displayed next to the edge of the highway (the ones that always seem to have a solar panel on them).