Yes, I was primarily worried whether cold does permanent damage to the batteries, and whether running them in cold temperatures is actually within operational parameters/covered by warranty.
Very cold batteries can lose longevity if you charge them without heating them up first, but most electric vehicles have builtin battery heaters, temperature sensors, etc. If you plug in a car to charge, and its battery pack is too cold, the car will first use wall power to warm up the battery, then begin charging once it can safely do so.