I was driving through a neighborhood in Schertz Texas, when I noticed an electronic speed limit sign that shows you your speed. Yes it was stupid, but I decided to see what happens if I exceed the posted limit. I've seen these before and generally they are on a trailer that the local PD drops off, and when you exceed the speed limit, the numbers flash alerting you that you're going too fast. This sign was not on a trailer, it was permanently posted in the ground just as a normal speed limit sign would be. When I passed the sign going approximately 7 miles over the limit, I noticed a few flashes as if photos had been taken. This was not the numbers flashing as I expected, I am almost certain it was the flash of a camera. Should I be expecting a ticket in the mail? Thanks to any police officers or public officials that can answer for me!