I have to agree. I had was the enormous amount of litter along your beautiful highways. If not, they really should consider it.
Some states pay a reward for turning in litterbugs.
Some enterprising folks are known to park near the drive through lane of fast food restaurants. When a car full of likely looking litterers comes through and buys food then these guys trail the car with their camcorders filming. Sure enough it is not long before the food wrappers and containers start flying out the windows. At the end of the day the photographer turns his tape into a designated location and waits for his rewards. Some people make their living doing this.