Side note: I had no idea about this!
Jokes on them. I literally can't make up my mind about what I'm trying to say and delete half of what I write multiple times before rewriting it. They must get so annoyed. Haha. I've always wondered how they respond so quickly though...
Also, that's not cool. I could write sensitive information in there before deciding it would be best not to do that. Yet, they can still see it. It would be nice to have a way to put a stop to that. If for nothing else, but for ignorant people like me.
It probably wouldn't hurt for you to start carrying an emergency bag around in your trunk on outings like this. It doesn't take up much room and could safe your life. Some food and water and something warm (clothes, sleeping bag, or both) could really go along way, esp if rescue can't come immediately and it's really cold out there, or you need to hoof it out.