I too have been around the area for many years.  The trails that skirt the park perimeter are a long ways from any tourist areas and there's only one way into the park for snowmobiles, and there are big fines for leaving the trails.  You sound like you obviously don't like snowmobiles.  If you are going to talk bad about snowmobile riders, you should throw in some facts and links to the things you mention.  Otherwise it's just talk.