You have never seen much snow if you think it can be removed by heat from inside the cab! You would need a shovel and a broom or a cab heated up at least hours before the ride. Not everywhere is cali.
Well I live in a country where it snows and have been with a Tesla in the mountains when it snowed. It takes only a little while and the snow easily falls off as soon as it's not freezed to the glass. At most you need to give it a nudge.
