Tsastor,
Thanks for sharing your experience.
I'll be headed to SF and then to Yosemite this March and will be renting a 4WD. Frustratingly, most intermediate and standard SUVs rentals do not guarantee a 4WD. I have a Standard SUV booked with Dollar and an Intermediate via Hertz and will give them a call day before collection to check if I will indeed be getting a 4WD.
Did you get your chains at Yosemite's entrance? I was hoping to pick up a set at Mariposa which can be returned if not used. Was told it is cheaper further from the Yosemite gate. Can you advise?