I think it It is considered State Park owned land. Yes they will take your toy and fine you if you left any tire marks, if you were doing some rooster tails it's big $$$.
Check out riderplanet-usa.com Trails, Parks, Permits, etc. listed as needed
We would just ride like we stole it to get away from them, but when we got back to the truck and trailer guess who was waiting and not happy. I have only known one person to have his Polaris Razor impounded and it didn't end well for him. It`s not good to have a attitude with the guy who is right and has a badge to prove it.
You can't even ride a motorcycle on the railroad tracks around here, they have the Conrail Police and the regular police have 2 Suzuki DRZ 400`s and they will take you bike, quad or whatever and its not coming back to you.
It's against the law to have fun in the dirt NJ, But I can go street race in Newark or other numerous local`s. Englishtown/Raceway Park has closed and they had a dirt course you could drive on plus they had the NHRA Nationals there. Flemington Speedway is long gone. I check out the pictures that are posted here and boy am I jealous!!!