I had this idea quite a while ago after watching a Mythbusters episode during which they attempted to beat a speed camera. The only solution was making a second plate mechanically fall over the real plate. I had planned on using infared LEDs which ran off of the car's battery. Only cameras would pick them up.

It's awesome to see this actually being implemented and sold. Even though I had absolutely nothing to do with this, it's cool to see the product come to life.