I agree that the law in NJ is the law and openly defying it is the wrong approach.
I have ridden in Utah, California, Massachusetts, Pennsylvania (muchly), New York (quite a bit), Vermont, Florida, South Carolina, Georgia, NC, Maryland, and a couple of other states whose names escape me with this whole "PANDEMIC." One thing that stands out to me is that the trails in all of those states, that I can recall, have trail signs.
View attachment 131888
This is one in Pittsfield State Forest, MA, at the top of one of my favorite DH trails.
They're kind of a big plus, if you are just passing through.
Have to get the JORBA legal staff to get to work on changing the laws.