I imagine there must be, oh, say, an Emergency Directive for Federal employees when mega storms like the one hitting the mid-Atlantic area are coming in: stay home. Don’t drive in this. (The Washington Post is counting 989 weather-related car crashes just in Virginia as of 1:00 am Saturday so far for this blizzard.)
Looking at the reports, sounds like the NSA’s employees today must have gone ED-ward, snowed-in.
(Warning: this is a topical pun. Apply externally. Do not swallow whole.)