Dade, Broward, and Palm Beach are rat counties and they have an emergency plan. They seem to "play well" with others.
I think Dade, Broward and Palm Beach all have high frequency disasters to hone their plans and learn from their mistakes. Disasters of this scale in the Bay Area CA come once every 25 years.
Suffice to say I have no confidence in local government and plan to be self-reliant. But most of my neighbors do not have a similar mindset.