Driving northbound on I-80 between Greenback and the truck scales before Antelope. An airplane flys high up and to the right on weekend mornings "to catch the people flying up the hill to Tahoe," as the citing officer told me. The plane will radio down to the car cop and there could be other cars going faster than you by the time the cop is on the freeway, but they are mandated to pull you over regardless… "because the guy up there caught ya"