That's one of the many "benefits" of having mandatory GPS tracking in every car.
Are you visiting Ahmed's Gas'n'Go once a week?
Of course you will be allowed to buy gas in NJ, but you will get a bill for the taxes you avoid from the PA dept. of revenue.
Isn't technology wonderful?
Stock up on 6 gallon outboard tanks!
Forget gas...people have been stopped for buying milk in Ohio (seeing as our retail prices here are SET BY THE STATE)