Safeway Removes Self-checkout kiosks from some Bay Area stores
I did see a story that SF is considering a law that would require grocery stores give a 6 month notice before they close. So stores can be robbed for an additional 6 months.
I do not know if it was passed or not or just proposed.
If passed, there is no reason for a store not to pull the majority of its stock and just leave a few cans here and there or maybe some nearly expired produce and a skeleton crew.