There isn't much to listen to except them checking for fishing and hunting license validity. They also run plates on vehicles they find in those areas. Also if you didn't know they have a talk group on the NJSP state 800 radio TRS.
As Ken stated above, F/W have moved to the Statewide TRS (800 MHz) for primary ops. In areas not served well for the TRS, they use the VHF channels to reach dispatch. The VHF channels are also used for special ops as well.