I was shopping at the mall today, and while driving around looking for a parking space, I noticed the mall security people doing something odd. They had a small handheld device, about the size of two packs of cigarettes laid end-to-end. He would point it at the Handicapped Parking Permit hanging from a vehicle’s rear-view window, and then look at some sort of display on the unit. I assume it was to verify the authenticity of the permit. Does anyone know how it works or what they are checking for? Are counterfeit permits that much of a problem? I know some temporary permits issued by doctors have an expiration date, would there be an easy way to encode a date that could be read this way?
Thanks,
MC$E