Snow chains won't clear my wheelwell, it warns you right in the manual NOT to use chains. I actually thought chains were illegal these days, because of the damage they caused to the roads and all.

As for the legal aspects, this is the first I ever heard about it. If I can score some cheap snow tires and rims, I'll get 'em, but they're $1600 from Tire Rack! Cheaper for me to call out of work if it snows again.