Something fishy here. How could he know it was a 9mm if he just glanced at it?
It sounds to me like the manager and/or employee was blowing this all out of porportion. I can imagine Scott saying something like “It’s legal, I have a permit. I was a soldier for Christ’s sake!” (And yes - perhaps a bit of “attitude” defending his fighting for such freedoms as affirmed in our Constitution.
This becomes “He’s some sort of Rambo Green Beret guy and getting all whacked out.” And aren’t all the rap songs about 9mm pistols? Too many movies and MTV videos I think. As I said, most of the witnessess said the gun was in a zippered holster. Although that doesn’t make the most sense to me as a CCW person.