In these conditions, sometimes the temps fall even lower, and people will take their ICE batteries inside to prevent it dying. Can’t do that with an EV, and can’t leave it charged for two weeks. The EV I have in mind can run its own heater periodically to prevent damage. Could I count on it doing that for the entire vacation?
You need to get a neighbor to come over, stroke the hood gently, give it a cup of tea, and say nice things to your EV. Otherwise it will never forgive you for leaving it alone.
Seriously, there appears to be no limit to the overthinking people do about leaving a car alone. Two weeks is not a long time. 10 F is not an extreme temperature.