I rode OLH/Pescadero/Tunitas today, and referred to the thread as I was looking for a place to park. The Sand Hill lot mentioned above was full (11am on a weekday). I ended up parking at the Woodside City Hall (?). Big big lot with barely any cars. I parked furthest from the building under the trees and my car was in shade when I got back ~3pm.
OLH was ~10min from the parking lot, which was a reasonable enough warmup.