As always we have bad apples in any activity, camping, biking, hiking etc..
Snowmobiles obviously are a huge thorn because of the noise,smell and destruction they cause. So when they intrude into self-propelled areas people are pissed...
Bottom line all the government needs to do is just like street racing. Impound the vehicle(sled) and then sell it to fund enforcement.
Once offenders find out their ride will be taken and sold for infractions things change quickly. Just like street racing it turned that problem around very quickly.
Its pretty easy for the government to rent a chopper or two and catch dozens of sleds in one weekend. Send a strong signal that every infraction results in rides being impounded. Bobs your uncle and every sled forum is going to go hog wild with chatter.
But we have to remember the government is looking at the upside of Sleds. The sales tax on truck, trailer, sled purchases and tax on fuel. As well the boost in sales for sled gear etc etc etc..
just my .02
Possibly we need to promote a new sport Biathlon with sled targets