I have a set of the snow chains recommended by Tesla that are currently sold out online. They are new, never used and in their original box. I'll take $400 for them and ship anywhere in the lower 48 US for free and of course no taxes. Spring is many months away and these are available now. Here's the link to all the details. Tesla — Model S Snow Chain - Trak Sport
I have those and have used them; they are very easy to install and remove and work very well. Highly recommended.
Thank you for the comments Ecarfan. I would keep them but if we are going into the slippery stuff I have an AWD Honda Ridgeline we would take. Hopefully I can sell it and get a Chademo adapter instead.