We just got the 2021 Tesla S. We're in Tahoe trying to get back home (Marin County). Cal Trans says cars need "FOR WESTBOUND TRAFFIC: CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW TIRES ON ALL 4 WHEELS ". We have all wheel drive, but we don't have snow tires. I'm concerned that Cal Trans will not let us through their checkpoint if we don't have snow tires. Have any of you driven your S from Tahoe on the 80 in the last couple of days without snow tires? If so, were you able to get through? TIME SENSITIVE AS WE'RE TRYING TO LEAVE TOMORROW. Thank you