Drivers who park at the regions’ three major airports have done it since 2003 and soon millions of drivers in 19 states, including New Jersey, will be able to use their E-ZPass tag to pay for parking and to buy gas. The expansion of the Driven by E-ZPass non-toll payment program across the 19-state E-ZPass Group network, including New Jersey, New York and Pennsylvania, was announced Tuesday by PayByCar, Inc., a mobile payment company that is making the service possible. Drivers who park at Newark or the other major Port Authority airports have had the option to pay by using their E-ZPass tag f…