Dually noted, but I appreciate the inputPermissive use would negate the required element of adverse possession that the neighbor be using your property without your permission and in a hostile or adversarial way.
So, a temporary solution --which could last decades-- might be to have a written agreement (contract) where your neighbor is allowed to use (drive across) those dozen square yards of your property,
until a certain date, in exchange for some consideration (he pays you)
or even without $$- you just give your permission gratuitously.
This doesn't do such a great job of his taking advantage of you and being negligent with his driveway installation, but it could kick the can down the road and postpone the future fight over how to deal with this encroachment without running the seven years' of a prescriptive easement.
The years where the neighbor is using your real estate with your permission would not be counted towards the total of seven "hostile" years required.
PS: I'm not a real estate attorney; I think I got a "D" in that class in law school,
and I have done no recent legal research on this topic...so it ain't legal advice!