When I drove through there last month I was ridiculously over-prepared. And I wasn't even leaving I-5!
Now I'm thinking the extra winter clothes, sleeping bag, food, candles, heater-packs, water, blanket and such really weren't ridiculous. And on my way home through there it had snowed, which completely changed everything. I was reassured by my extra supplies then.
That area is pretty intense in the snow.
I can understand him leaving his family to get help, that's a natural reaction. Did they think he already had hypothermia when he left the road? I had hypothermia once (on Mt. Shuksan) and never want to experience that again. My intellectual processes are iffy at best, but with hypothermia decision-making gets really weird.
"If Americans want to live the American Dream, they should go to Denmark." - Richard Wilkinson