“Once cops start getting shot, they too will go home or hunker down somewhere. “
Actually, the cops have families, and they may not even wait until one of their own gets shot. Similar to New Orleans, with the school buses - yea, lots of buses, and lots of people needing rides. But guess what, the drivers have higher priorities than carting around total strangers. In that case, the thing to do would have been to fly in drivers from Tennessee and other states far away from the hurricane, and give them a map.
I have spoken to many of the local constabulary and to a man...this is what they say they will happen in extreme circumstances such as we are prepping for.