Not that it's likely that I'll ever have a hurricane here, or get overrun by gators, but let's say a stray hurricane would come by.
While many of my vehicles are insured, I wouldn't want to lose any of them. So drive them away, you say? Okay, where do I find enough drivers to do that? Even on a good day.
If we were under some sort of threat like that, most people would probably be busy with trying to save their own stuff.
Needless to say, there's a reason I don't live where flooding, hurricanes, tornadoes, etc. occur. I spent way too much time in California worrying about when it'd all burn down. Which it eventually did, but thankfully not until after I left.