This post and the one that follows seem to be something of a non sequitur
... I am not going to carry it on my person. Most likely it would be sitting in a bag in the car trunk until needed. ...
and
...Something did collapse on me and I was pinned under for about 15 minutes...
A great knife, fixed, folder or pry bar will not be of any use if it’s sitting in a bag in your car trunk while you are pinned down and can’t get to it.
You need to work out your actual needs/requirements and how you intend to have it ready for use and at the same time legal. Nothing is perfect, but consider the legalities of wherever you happen to be and how that dovetails with your needs.