Arlington, Virginia has taken the next step in automated camera enforcement. Next month, it will expand its use of "BootFinder," a camera device that scans license plates of parked cars and compares it against a database of unpaid fines. If the car's owner is listed as delinquent, the car can be towed -- and if the owner doesn't pay within 10 days the car is auctioned.

Currently Arlington's program focuses on unpaid car and property taxes, and the city's one camera has collected $90,000. In March, however, any unpaid fine is fair game, "anything from late park and recreation fees to overdue library books."

New Haven, Connecticut has towed 1,800 cars and collected $1,000,000 with its BootFinder. Bridgeport is ready to get on board as well.

The system uses a $25,000 camera mounted in a laptop-equipped minivan and is capable of taking a thousand photos every minute. Arlington County Treasurer Frank O'Leary told the Washington Times, "We're just always looking for new ways to skin the cat."

Update: New Haven, Connecticut used Bootfinder to tow a woman's car out of her driveway for $85 in unpaid parking tickets.

G2 Tactics has sold 17 cameras so far, just 2 to a law enforcement agency. "I was so dense," says Bucholz. "There was money to be made in taxing and parking, and, unlike the police, those departments had money to spend."