kind of weird to see Dunkin’ Donuts put forth as a markedly Bostonian thing, I remember its national “It’s Time to Make the Donuts” ads in the 80s

Because before Krispy Kreme it national chain-ified the institution of “the donut shop”. Like, roadside stop with a big attention-getting sign? Open past dark so the cops have a symbiotic relationship with it? That was a familiar postwar thing!