Interesting! The Rite Aid corporate HQ is also in Philly. I guess they formed a tie with Goldenberg's long ago.
Another Philly standard line of snacks are Tastykakes, always found in Wawa. Maybe they're in Rite Aid, too; but baked goods don't export to the left coast as easily as candies.
Good hunting for the dark chocolate Peanut Chews (red and brown package).