San Antonio, Texas Speed Traps
The cop parks on one or the other shoulder just over the crest of one of the overpasses. You come over the top, and if your car accelerates (as they tend to do upon cresting a hill), he’s got you.
Both north and south-bound lanes have a blind-spot curve where I-37 passes overhead. In the shadow of the bridge, just after the curve is where the police officer is usually parked. Just before this area, the speed limit drops from 60 to 50mph. Your best bet is to slow down as you near the blindspot and resume speed after clearing the on-ramps.