Maybe this isn't what you are referring to, but if you are talking about "The Wal-Mart north of town" (as opposed to another Wal Mart nearby) then the usage would be correct.
My first CP I had a roommate who worked at Kona Kafe across from Ohana. She absolutely hated it when people called it Ohana's. We got the "it's Ohana, not Ohana's" lecture many times. It still makes me giggle.