They knew he got off a bus from New York and that his backpack was full of cash? By the fact that he was sitting in a mcdonalds?
And he didn't match the outfit, just similar. You think the cops from around the us were justified in searching anyone white in a hoodie because someone in New York did something?
That is true but pretty irrelevant. Is a law enforced is a completely different question from is it a law, and it's not an insignificant degree of difference.
That's like someone asking if chocolate ice cream exists and you saying it's possible no one likes it. Technically true but irrelevant to the question.