My biggest fear is that some damned continuity of government plan would actually work and about 2 or 3 weeks later, the DC SOBs would come crawling out of the rubble saying “Don’t worry people, your Federal government has survived and we are back in charge”.
I’d think they’d be ignored, and their local supporters... ahem... disregarded.
Face your fear. Is there any doubt? Any whatsoever?
The main focus of US govt. is perpetuating control. Working with an unlimited budget and magic technology 24/7/52 for decades you can be certain they’re up to speed for every contingency.