Well, luckily for the former president*‘s campaign, it wasn’t raining on Monday, when he grotesquely used Arlington National Cemetery as a campaign prop because, as we know, he gets a little nervous around soldiers’ graves in the rain, and he says things that require him to lie his ass off later. Most recently, of course, he devalued the Congressional Medal of Honor in favor of a bauble he draped on Rush Limbaugh and the wife of one of the sleaziest of his sleazy donors.
What I mean is that in a more serious security situation, if a guard were to allow an unauthorized person into an area they were told to keep unauthorized people out of, the guard would probably be brought up on charges for dereliction of duty. The US Army is not the Russian Army; we actually take that shit fairly seriously (by we, I mean country-wise; I am not personally a serviceperson/vet).
Edit: not to mention, I’m pretty sure they do drills with senior officers playing the “bad guy” for specifically this reason, and you fail if you let the officer in just because he blusters/is an asshole to you. It’s just social engineering at the end of the day, and they train to mitigate it. It’s a major threat vector in basically ANY controlled space, regardless of whether it’s military or civilian.