Stop Light Cameras Technology Used: Peek Industries Average Ticket Cost: $ 75. Group Running Trap: Private Contractor, remotely possibly with a "police" clerk. Type of car used: none This is a Stop-Light Camera covering the two lanes facing North on 355 at the Shady Grove intersection. Sensors in the road detect a vehicle at two places before, at and possibly in the intersection. Therefore, speed and "Racing to Make the Light" can be determined. Two pictures are taken from behind and the citation is mailed to the Registered Owner, who is expected to "Rat On" the driver. If you get caught here, you "might have heard a Siren" or "encountered a funeral procession" (not a lawyer).