I'd be holing up are my office where I have a stash of emergency supplies (I have a well stocked BOB locked in a file drawer in my current office, with >>>), and extra cash, ATM card, and Credit card. Extra winter clothes and a toilet kit are on the coat coat hooks in a corner of my office. [Besides my stocked Yukon is less than 100 feet from the building! <img src="/images/graemlins/smile.gif" alt="" />.] People know where I am, I know the area. Hunker down and wait till transportation is available, or someone can get to me.
Walking 21 miles in cold Chicago temps and a blizzard is far harder than walking 21 miles on a warm spring day.