Yes, and this does in fact infantalize people. But it's an unintended consequence of it's functional purpose: job creation (regardless of the stated justification for the law).
It's only partly a jobs program. Really, the jobs are mostly a side effect. Jersey people love their full service stations and are very protective of it. In and out, don't get out of the car, don't mess up your precious hair and hands dealing with the elements or the pump, back on the road. I don't identify with the attitude at all, but it's a real part of the culture. I've been chased back into my car by attendants more than once in Jersey. Nowadays I typically fill up before crossing state lines and drive across the state nonstop, even though the gas tax is lower in Jersey.
I can understand not bothering to drive to Jersey just to get gas (though it is cheaper), but spending more to fill up before crossing the border solely to avoid the experience of someone else pumping gas for you seems a little extreme. Is there more to your dislike of NJ gas stations? Whatever the reason, I respect you for having the courage of your convictions, especially this time of year!