I just saved one sim from Grim after she collapsed from freezing. She was on the street in front of my sim's house and my sim convinced her to group up. It would take too long to walk back to my sim...
I have always and still play a completely vanilla game, no mods, no cc. I also have all the available packs so let me know and I can do a test run for you guys. What would you like me to do? I am willing to start a new save and test it for you all. So far my actual game play save has just started summer so I have not run into winter yet ;)