You have a beer and go watch the Bears and Packers and hope the car starts in the morning.
The old Willy’s pick-up has an electric block heater plugged in. It sits outside, but the snow plow has priority.
IIRC, the parking meters in Winnipeg had outlets on them to plug your car’s block heater in while you were shopping. The thing was, though, if that meter timed out the power was cut. I imagine that virtually solved the problem of parking at expired meters.