Well, a bit more info about this story is beginning to emerge.
See Wolves or no wolves, Cantwell couple sur... what happened.

From a quick read on my lunch hour, my take is that Mr Mayo made the classic mistake of being overconfident of his route finding in an area he knew well. That, and continuing to wander about after he clearly knew he was lost. If he had even carried a compass (let alone a GPS) this would never have become a story at all. Once he ran out of gas, he didn't do too badly. He started a fire and kept it going, improvised shelter, melted snow for water, and stayed in one place.

As for Mrs Mayo, she seems a good bit less skookum. While she was no doubt at least mildly hypothermic and certainly in a very dangerous situation, she clearly was not "severly hypothermic" in the clinical sense. What I don't understand is why she chose to burn up her snow machine, rather than gather wood and build a fire? The only possible explanation I can see is that she was in one of the more open areas, and her mobility issues prevented her from traveling even a short way to gather wood. Since she apparently did see and hear some mushers one night in the distance, a strobe light and/or whistle might have got their attention.

No comment on the alleged wolf pack.