USPS: Post office. SNOWBALL: Why haven’t you picked up my mail yet? USPS: What kind of American are you? It’s a national holiday—it’s Wink Martindale Day! SNOWBALL: Wink Martindale Day? USPS: Yeah! Well—except in Arizona.
Winston Conrad “Wink” Martindale is a veteran game show host—in fact, he’s hosted the second-most game shows ever (15, behind Bill Cullen’s 23). His last one so far was 2010’s Instant Recall.
Another layer to the joke is that Arizona rescinded Martin Luther King Day in 1987 after it was made a federal holiday the year before, and it was only enacted there in 1992 following a tourist boycott.