It is the week of random signs. This one marks the location of an emergency evacuation gathering point. It's in a parking lot. A parking lot of a grocery store. A parking lot of a grocery store in Northern Virginia. This isn't hurricane happy Florida or earthquakey California. What emergency could they possibly be preparing for? Sudden tax increases? A shortage of imported cheese? How alarming would it be to go buy broccoli and park under the SIGN OF DOOM?