Take it into the house to warm up.
Then transfer some to a really small squirt bottle (I found some that have a tight cap and are only 4 oz.) and carry it with you when you get out of your car. At least in the freezing weather. I have a tiny Meguiar's Detailer bottle that I have kept and refilled for over ten years. I keep it, a small ball of clay, and a MF towel in a baggie in my spare tire compartment.
But since I'm in Los Angeles I don't have to worry about freezing temperatures.