License plate tracking for fun and profit

BoingBoing reader Dan says,

Wired News has an story about the increasing accessibility of LPR (License Plate Recognition) technology. This is the same technology US Customs uses to track vehicles entering the country. (For a brief overview of the technology, see this DHS article) The potential privacy implications are scary. Even if LPR systems remain out of your next-door neighbour's price range, do you really want ChoicePoint and its ilk corellating your credit history and shopping patterns with precise information on where you drive?