Do they make a low sodium Grand Cherokee?

So there is at least one elk in Rocky Mountain National Park that just loves licking the salt off of cars in the wintertime. I know this because I saw him doing it, and because when I got back to my car, it was covered in tongue marks. Yesterday, I took the peak to peak highway up to Estes Park and then did a little Winter hiking. It was cold, but serene and beautiful. Here's the pictures of the Jeep: