Hi! We are Safeway customers in Alaska so when we wanted a Vons order in California, I went in to my (already made) Safeway account online and changed my address to the hotel's address. I read on DIS that that was what to do, and I double-checked by calling Safeway. The Safeway person said to change my address to the hotel's address so that I could get a the local "specials" but to make sure and change it back to my address when I came back home, to get the local deals.
I think there may be an area to write a short note for the shopper and delivery person at checkout- I indicated that we were going to be HOJO guests. It all worked without a hitch.