Nobody, especially those who pontificate from the safety of their computer, knows exactly what they would have done in the same situation.
No cell phone ?
It doesn't help anyone not pointing out the mistakes that were made. I spend a lot of time in the mountains of NW Montana under all sorts of conditions. While there's no guarantee against turning up dead, there are a number of preparations you can make to protect against that eventuality and a number of things you never do.
I've repeatedly heard the sheriff and other officials go out of their way to say Kim did nothing wrong and I honestly wonder what's up with that. Usually these incidents are used to instruct others on what not to do in a similar situation.
I'd have rubbed to sticks together, chop-sticks even, to create enough heat to 'combust' some of the local flora and fauna, not to mention using things like lint.
Situations like this cry-out for a smoker. Their 'BIC' could shortcut things and a blaze could be happening in record time.