Wait---Plum---make your own-just a piece of stainless at a right angle to the tag, Polish it and you should be good to go.
VOTE TO BAN !!!
Plum and all others. The device was vertical in the center of the tag and polished to reflect one side on the tag number/letters. I don't remember how it was attached, but I presume it was nothing more than two tabs ( one top, one bottom) bent over the edges of the tag. Should be easy to duplicate.
Wouldn't a cop who looked at it see something funny with the license plate?
In Baltimore they'll install a red light camera, and if it's not producing enough revenue, they'll shorten the yellow light time to help their chances. Red light cameras are Ok if used properly, but too many times it becomes all about the money.