I didn't mention "property", although that can be part of it. In my case it was a little of that and a lot more getting people and animals -- and their food and medications etc -- together. Let alone establishing where we were going.
But your point is taken -- I could have said "fuck it" and left them to drown.
We got the evacuation order by phone at 2:30 am. We were on the road by 8am with everything we considered irreplaceable, two dogs and two cats and some food water and wine. took 16 hours to go a distance that usually takes 4 hours. Saw many people stranded on the road with no gas, stopped at a station in Ala where there was a very long line and about 10 state troopers, they let you buy 10 gallons, no more. spent one night in the car at a rest stop, finally got to Jackson and spent 4 days there with no power. Came home, secured the house with a tarp and left until the power came back on 10 days later. I do not ever want to have to do that again.
By phone from a friend? See, that's even 12 hours later than I got word.
Your travel story is consistent with mine. Somehow I got on the wrong contraflow lane and had to go through Baton Rouge

and they wouldn't let me up I-55. My destination was southern Mississippi, on the river. There we got a minor storm and some wind, some light branches broken, no big deal, but the power went out for days. Yet right across the river in Vidalia everybody had power. It's the way the states are set up. Eventually they got crews coming down --
from Arkansas -- to get power restored.
At the time there were fine generous people offering housing everywhere from Mexico to Nova Scotia. I seriously thought about Nova Scotia but I ended up coming to the mountains of Carolina, a vacation house in the mountains with seven levels of Appalachian peaks to look at. We weren't allowed back into the city for five weeks -- early October --- and even then there was no power, no utilities, no police, no traffic lights and no place to eat but for a couple of joints out in Metairie. And the first order of business was to tape up your refrigerator and haul it outside to be picked up and taken away...