It's best to Uber or take a taxi to the theater. Maybe, find a nearby hotel in walking distance if you are coming from far away.
You could valet park across the street behind Hotel Whitcomb. Short half block walk to the theater.
BART Civic Center stop is literally right in front of the theater. Parking is not impossible, but very challenging.
Several theater goers parked between market and mission in a parking lot there, there are some on Mission. Use Google Maps, some should come up. But several forms of public transport will put you so nearby or at the theater.
Ride share or taxi is the best way. Neighborhood parking isn't impossible, but not easy to find.
We Ubered, although there are garages close, SOMA garage is one however ride sharing is easiest and probably quickest.
Thanks! Your answer is awaiting moderation.