According to the article:
At BFS convenience stores, where they’re sold alongside Hot Pockets and other nationally distributed grab-and-go foods, shift workers warm pepperoni rolls in microwave ovens and dip them in packets of marinara sauce.
At the Ritzy Lunch, a venerable diner in Clarksburg (WV), grill cooks dress split rolls with chili and cheese. Country club barkeepers sell pepperoni rolls as ballast to beer-drinking golfers. They’re a breakfast food for glass-plant laborers, peddled at doughnut shops.