They gave you that, and then they told you this was safe ...
If you want a survival tool, buy a small quality axe, machete, and saw. The three together won't cost much more than some of the knives pictured above. Get a tool bag made of canvass and keep these tools in your vehicle. You will be better prepared and capable of providing yourself shelter, fire, and food in an emergency.
And carrying a canvass tool bag is easy compared to stitching up a severed finger or sliced artery that you will get trying to do the work of a saw, axe, and machete with a survival knife.
I'd add a small, folding shovel to that mix and you're set!
By the way, there is nothing like pulling a three inch piece of razor sharp knife blade from your face after using a knife as a hammer! It is not fun, but it was educational, I'll never make that dumb mistake again!
That sounds like an interesting story!!