I'm almost sure Route 1 north and south of San Francisco is open - and it's really a nice drive south to Monterey and Carmel. The big landslide was in the Big Sur area, south of Carmel. Take Skyline south to Santa Cruz, and then join Route 1. The northbound trip on Route 1 is less treacherous.

You might want to check AirBnB for lodging. I've had good luck with them. San Francisco can be expensive. You might want to stay in Santa Cruz or Marin County, and make day trips.

Eating? I'll second "It's It" ice cream bars, and suggest crab or calimari at Fishermen's Wharf - accompanied by San Francisco sourdough bread. If you're in the North Beach area, stop in a bakery and get some focaccia. And Spenger's seafood in Berkeley.

-Joe-