[markem]

Love this law. Whitehall MT, right on the Continental Divide (Butte being on the west side and Whitehall on the East):

It is illegal to operate a vehicle with ice picks attached to the wheels.

I grew up in Butte. I know all about highs of -40* for weeks on end and heavy snow, but ice picks?

btw, I have seen homemade snow tires: strips of leather with nails tied around the tread. Yes, the sharp end (at least of the nail) was pointed out.