Why didn’t she’d let stop?
I don’t know who “she” is? Do you mean Scheffler? Maybe he was confused and thought he was being waved thru by some random guy in a reflective vest and raincoat? I’ve been in situations like this with road crews randomly waving cars thru’ and half the time you can’t tell if it’s you or the other guy being told to go, with the way they swipe their arms around.
No matter what — you seem to be making as many suppositions about Scheffler as others make about cops (and yeah, I know, I have a kid in the FBI and it hurts to read comments here about how they should all be nuked and stuff like that) BUT — why assume that Scottie had any idea that it was “just some vendor” who was killed and decided that guy wasn’t as special as him? From all accounts (and despite having somewhat of a punch-me face) Scottie Scheffler seems to be an easy-going, nice, Christian guy who just happens to be a very good golfer, not some elitist prick.