https://youtu.be/aauFUWkKoc8All he's doing is filming their building. But it's funny as hell to see these industrial workers panic and trying to intimidate the camera man, and then summon a boss, and finally cops. At one point they even try to block his view into the building by getting employees to stand around blocking the view with a piece of cardboard.
It really drives home how so many of these bosses act like mafia bosses that have to protect their pride by stopping the camera man.