I think ctflyfish has it right. If there are no laws regulating this on the OP rivers maybe there should be? I know when I first got my sled I was hoping to take it over to the penninsula for a weekend trip. Luckily for me before I did that I actually booked a trip with a guide and found out how prevalent tire slashing was for those with sleds. To this day I have never fished an OP river again.

Now trust me I try to be as courteous as possible but I sure don't understand ruining someones property just because they want to have a good time on public property too.