That's assuming it happened at all. I imagine him seeing a guy in a MAGA shirt, and on the way to his car thought of a cool "what if" scenario that would get him all the asspats. Kind of like that woman who made a big deal out of a lack of diet coke on a flight turning into some kind of racist hate crime, but the people on the plane said she caused a scene about the lack of diet coke, got a shit eating grin, and spent the rest of flight typing.
It sounds like some kind of 4chan /pol/ meme like the OK hand sign or clowns.
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