This is the exact same thought I had when reading the story. Not only would it be cheaper, but you could follow each vehicle through the lot and figure out the

This is the exact same thought I had when reading the story. Not only would it be cheaper, but you could follow each vehicle through the lot and figure out the traffic flow patterns better. Plus, to tie in with this other front-page story ( https://news.ycombinator.com/item?id=7346629 https://news.ycombinator.com/item?id=7346629 ), you could track the plates of the cars, and tie that in with retail cellular tracking ( https://news.ycombinator.com/item?id=5154089 https://news.ycombinator.com/item?id=5154089 ). Facial recognition still needs a couple of years. Over time, you could tie the cellular phone, vehicle, and electronic payment (debit or credit card) to an individual. Continual tracking. And all brought to you by technology. In the words of Pogo: "We have met the enemy...and he is us."