To alert Pilots of Airspace restrictions that may be needed in areas where dignitaries or Government officials may be visiting...... I suppose its a NOTAM for expectation of a NOTAM?
Probably not a big event after all You can't get IN and OUT in...
Maybe after LA and the request over the Chicago, the FAA likely told them to stop doing this:
https://www.twz.com/air/massive-drone-no-fly-zone-imposed-over-greater-chicago-area
"During the interview, S-1 admitted to pointing the red laser pointer at Marine One. [defendant] said he did not know he could not point the laser at Marine One; he said he points the laser at all kinds of things, such as stop signs."...