They routinely do that when there is a disaster. I know that because I busted such an airspace about 20 years ago - landing my Aeronca Champ in the middle of a flooded region. I remember waiting for the Army caravan to get out of my way before I touched down on the strip...haha....
The FAA typically does this, though. In this case it was an exploding RV...
The FAA typically does this, though. In this case it was an exploding RV...