I heard this on the news this morning. The young woman who was recently kidnapped off the street in Philly was found and rescued in Maryland with her abductor. It appears that the dealer who sold him his car planted a GPS device in the car because of his shaky credit.

Here's a portion of the story:

Authorities identified Barnes as the assailant through DNA obtained from the victim. They also got a picture of Barnes' vehicle from a traffic camera — and that turned out to be the big break that helped police find Freeland-Gaither.

Authorities spotted a used-car dealer's name on the photo and recognized the dealership as one that routinely puts GPS devices on its cars. Crawley said the dealership sells to customers with poor credit and relies on GPS when it needs to find and repossess cars whose owners have fallen behind on the payments.

"We called the dealership, and within five minutes they had the location," he said.

Link to the entire article