We are flying into Fresno the first weekend in November and renting a car. 1. Where is the quickest place to stop and buy tire chains since we must have them to enter Yosemite? 2. Will there be someone we can pay to put them on should we need them? (we have never used them) We are staying in Yosemite 3 nights before driving to Vegas. I know Tioga Pass would be our best route if still open, but what about it is not still open? 3. Any suggestions other than those I have read which involves going back to Fresno then on to Bakersfield, etc?