Civic Center Motor Inn

Address: 9th Street, 364, San Francisco. A quick check on the map can help confirm the entrance and the easiest approach.

Looks like they're open every day, so you don't need to worry about timing your visit around a closed day.

According to available data, this is a motel. Motels are typically designed for short stays and easy access by car, with a more limited service offer than a full hotel.