Anon, there’s no way for you to see what officers saw unless you were looking through their eyeballs. So don’t obfuscate. They wouldn’t have seen it all if he didn’t display it. But what firm that ‘display’ took we don’t know. EXCEPT that several officers saw the display simultaneously and all deemed it a deadly threat at the same time.
Quit thinking like the agents are npcs- whatever they all saw, they all immediately reacted to it as an imminent threat to life.