Love this thing. It’s like wearing a toasted marshmallow. Have matching gloves. Baffin
-50° boots. Insulated jeans.
Usually in winter I keep spare shoes, etc at work.
But am assuming you haven’t had time to prepare. Just stay inside. Blow off work. Plastic sheeting taped over the windows. Dogs on the bed, they generate a lot of heat. My dogs aren’t stupid. They run outside, do their business, run back in towards the wood stove. Hot soup. Calories = heat. Start the car and let it run every few hours.
Keep an eye on elderly neighbors. Maybe have them over.
Hope you have a fireplace.