I'm going to keep my opinion of out of staters to myself as they aren't ALL a pain in the ass lol.There is a reason many of us Mainers see some people from certain states as thinking our state is their private playground and we often feel they don't care less about any damage done to our state or its landowners or our access while they play by their own rules....wherever they feel entitled to play.
You need a sign posted to show respect to private Maine landowners ? Bummer.
But it's kind of important to point out, at least concerning this issue, that this problem was a combination of license plates and they weren't all from down south. Plenty of Maine plates on vehicles that were involved. Its really not a tourist thing. If we don't all start working together and policing each other we're going to be fucked. On and off the trail.