They were tired of being told what to do, especially when it comes to having some good old fashion fun.
Check it out:

Nothing screams Snow Day like throwing yourself on an un-steerable piece of plastic and flying head-first down an icy hill. But winter’s rite-of-passage is actually against the law on the snowy grounds of the U.S. Capitol.

Yet that didn’t sway dozens of moms, dads and kids Thursday afternoon from defying Capitol cops and marking their icy territory. The snow-covered slopes of Capitol Hill became the scene of an unusual “sled-in” protest — and with most of Congress closed for business on Thursday, they had the full attention of the Capitol Hill media.