WW2 carrier, floating museum, USS INTREPID, has been federalized. It is being outfitted 'for a new mission' according to the man who ran it on a NYC-based talk show.
What could this old ship do? It would take a while to make it a hospital ship or a helicopter/marine carrier... wouldn't it?
It could very easily be left in place to serve as a home base for large numbers of military and/or police helicopters. All they would have to do is clear the deck of all those planes that are now part of the "museum."