Good post. I grew up in the Pacific Northwest and most of my family is from ND and MN, the later of which is were I spent my high school years. I hunt in northern MN and Wisconsin and always have a little emergency kit in my truck, which I will list a few items down below that have served me well. This is mainly set up as I have a 45 minute commute home and I wanted something I could throw in a "get home bag", as I know it is probably a day walk at best.

Rocky Pack-able Jacket. It is very warm for what it is, I don't recommend using it everyday as it doesn't seem durable enough for that, but it is warm and packs into a small area.
https://www.amazon.com/Rocky-Insulat...1-2&th=1&psc=1

SOL emergency blanket. I was late season duck hunting and when I went out to grab a decoy I slipped into the main channel and filled my waders with 33 degree water. We had a 30 minute boat ride to get out of the state park that I froze through, luckily one of the guys had this in his truck.
https://www.rei.com/product/813511/sol-emergency-bivy

A basic skivvy role. T-shirt, underwear, jogging shorts and socks. I wish I had this when I went into the sugar river duck hunting. I should add a cheap pair of walmart sweatshirt and sweatpants, just in case.