I often travel for work and park outside for up to 5 days at a time. Living in Cleveland Oh where it often gets below freezing has me a bit concerned that the battery will be dead when I arrive home from a trip. I've read estimates anywhere from 2-8 miles of range loss PER HOUR when a Model S sits unconnected in below freezing weather. Is this true? If so, I certainly would be stranded at the airport even at the low range loss estimate. Does anyone have any insight into this?