Secret Service would show up. Her take: They are scary and they don't smile.
Given the recent rise in terrorism, and all the threats,and size of crowds, I expect they have good reason to become more protective. The current regime is about to be replaced. That also means a period of maximum danger.
They take their job very seriously and it shows. Except when they are playing with hookers. I don’t think they have much of a sense of a humor either.