As mentioned, I think it's great that a) someone in the .gov has a sense of humor and b) their supervisor was attuned to pop culture enough to recognize that this would be a good way to get a message out.
I think most INGO members will get by on the firearm end of things for a few days...
#3.Identify your emergency contacts. Make a list of local contacts like the police, fire department, and your local zombie response team. Also identify an out-of-state contact that you can call during an emergency to let the rest of your family know you are ok.