Jim...
Am surprised you asked that question.......obviously it is to hide your spare key!
Of course, if you don't have any change on a toll booth.......it could work for you....but everyone uses it to conceal a spare key or a key fob......! No one would EVER use it to bust a tool booth.........or would they?
That thing is obviously illegal when used as intended
If caught using it by a cop, I am sure they would slap all kinds of interesting charges on the person....
But I will say that it is stupid to charge a toll on two wheeled vehicles anyway. It is a disaster to try and deal with tolls on a bike, when the rider is wearing
proper safety equipment. And the stupid electronic passes are hard to find a place to mount, an invasion of privacy, easy stolen or damaged, and often WAY more expensive for casual use. Bikes reduce traffic on the road, reduce emissions and gas use, and cause essentially ZERO wear on the road.
Here bikes are allowed to use HOV lanes no matter if 1 rider or two. Toll-free would be an excellent next step...