It's also my understanding that he deliberately did not want to have high security at his events, in a personal assumption of the risk of this type of vulnerability.
except for
there are few, if any private security companies with police powers
if you are getting paid to be there, you ain't recreating
and, in my state, there is a lot of legislation regulating drones.
Where did you pull this from?
Orem, Utah doesn't have any drone restrictions for recreational users beyond the FAA's restrictions, and LEO are all able to fly for tracking, investigations, and search and rescue. So again, wrong...