http://www.huffingtonpost.com/2013/12/10/washington-dc-snow_n_4417937.html

http://www.washingtonexaminer.com/federal-workers-essential-during-shutdown-now-not-essential-during-dc-snow-day/article/2540495

note: '2 inches' was an exaggeration. the point is i've heard of DC shutting down over relatively small amounts of snow on a seemingly regular basis.