Anyone had any luck hiring a car in the US with winter tires? The family are doing a San Francisco to Telluride via Vegas road trip in January and I can't find a car hire place that will offer winter tires. They offer all season tyres (presumably M+S?) and prohibit using chains. Snowiest bit of the trip should be along routes 160, 491 and 145 (up and over Lizard Head Pass). Am I being a nervous nelly? Anyone done those roads in a snowstorm? Are all season tyres and no chains going to cut it? Cheers.