Honestly,
it takes an evacuation to refine plans. We saw it here.
There were SO many things that went wrong, were bad, weren't planned on etc. You never think of things--just in the healthcare sector-- who picks up Hospice patients and takes them to the hospital, what do you leave with them (meds, medical charts etc).
How do you transport the fragile or terminally ill? Long term care facilities, psyche units etc all have transport issues unlike the general populace.
I mean, you can say things like "Ambulances" but there aren't enough in one state to transport everyone in one city if need be. Same with the transport company vans. It gets really tricky when you identify 3000 folks who can't sit up to ride and only 1000 vehicles available (just made up numbers here).
I understand what you are saying, and I hope other coastal cities are paying attention to what happened and learn some new things from it.
Anything that will help to save lives, with less waste and confusion.