[fredjacksonsan]

I think that PA has some agreement with bordering states that points will transfer, but I'm not sure. Last time I got a ticket in PA it didn't transfer to me here, in VA.

IMO the best bet is to pay the fine by mail and hope it doesn't transfer(that's what I did and the points didn't come across). You could always try to fight it, but it seems he has you dead to rights and going to court might make more of a noise with MD.