I always thought those things were a Challenge!:smileygarden_de_banHouston Police routinely sets up mobile radar trailers whenever they get complaints of speeders near the entrance to various neighborhoods in the area. No tickets issued with them, but they do have a large display letting the motorists know what speed they are traveling at. There was one parked down the street last week, and then at another location earlier this week. Both times, my speedometer clocked dead-on accurate.