All the large grocery stores left the inner city because of robberies and trashing of their businesses. There is a Save-a-Lot who has small bars around the doors so the carts won't fit through. You have to carry your groceries to the cars. I don't go there because of the guys who hang around. Other stores have poles on them so they can't leave the store. How can you help people like that?
Often thought there is a market for a warehouse store in inner cities. Don't know if you have them - we have one here called Argos (it deals consumer goods, not food). You fill in a slip from the catalogue, go to the desk and pay - the till contains a small amount of change, all notes immediately are sent to the office - then your order comes down a conveyor and you pick it up and take it out yourself.
They are popular here in high crime areas, because they can't be robbed or shoplifted from, they have heavy security and they are invariably extremely well lit and busy.