Local businesses care as word spreads and it keeps people away. They always seem to set up in this area when they do. Granted, they don't do it often, but move it around a bit.
Why would anyone be scared of a DNR checkpoint? Constitutional issues aside (which is a thing, granted) you need just five common sense things to be sent on your way in just a minute or two:
-Valid registration (meh...)
-Valid insurance (protection of yourself and others)
-Valid trail sticker (trail funding)
-Stock or stock-quiet exhaust (trail conservation)
-Little to no alcohol in your system (common sense safety)
Whoop-tee-do!
If I knew of a riding area where it was known the above was adhered to, it would actually make me WANT to go THERE, not elsewhere.
An overbearing government pisses everyone off, but when it is health/safety/liability/funding/trail conservation stuff then more power to them for kicking the sled trolls in the nuts.