Not all jobs or educations can be accessed remotely. For retailers, you need bodies in the store. Most classrooms are not equipped to transmit lessons online. But for many new age companies, working remotely is completely feasible. You can sign in to instant messenger, transplant meetings into Google+ Hangouts, and plug yourself in. Stay warm, stay safe, stay home. And get more work done.
Sound like an unreasonable dream? Far less unreasonable to me than wasting three or four hours in your car without a shred of real work. Employers should see the productivity and time lost to snow. They should call a snow day and unveil a plan to continue operating internally. Far better to do that than expect a troop of soggy, frozen, and demotivated employees to walk through your door.