Consider this scenario.
A mandatory evacuation hits a gulf state or states and everybody with a battery car bugs out at approximately the same time.
Best case scenario there is the batteries were fully charged....at 300 miles out everybody is looking for a way to charge up.
If your fortunate enough to have been able to afford a tesla your gonna need at least 30 minutes to charge up IF you can find a tesla supercharger.....you and all the other tesla owners.
In the meantime a cat III+ hurricane is bearing down.
Since I do live on the Southeast coast, if I have to evacuate I suspect I’ll be seeing EVs scattered along the highway like so many discarded soda cans.
I’m sure there will be no panic.
The problem is that you won’t see them scattered along the Highway. They’ll be dead on the road blocking everyone else and the only way to get them moving again will be with a portable fossil fueled generator.