Hi Terry, Just dropped in to this forum to see what people have posted.
Yes, the Muzio's moved to Slo Clounty and opened up a store that is still there. It is said to be the first grocery store in the City of Slo.
It has beautiful hard wood floors and was recently sold by the Muzio's. (a few years ago) For years it still had the flavor of being right from the old days. Deli sandwiches could be had and drinks out of the old refrigeration units.
Anyway, it is still a store and they still have the sandwiches and coolers. It is located on Monterey St.
I would assume this is your family but I am not connected to them in any way. Just love California History.