Fear not warehouse adherents, the Church of Consumption has a bustling outpost in San Francisco's SOMA district!
Other than the aggressive squealing of eagerly anxious shopping cart wheels, only the rare audible voice (no music) distracts from delicious dealfinding. Local products sometimes include "San Francisco Coffee Co" beans (3 lb bags) and Giants tickets!
For those seeking a more homegrown grocery experience, Rainbow is just down the street :)
Address: 450 10th St, SF, CA
Website: http://costco.com