I am sure the cop called the threat into his radio.
Then the communications folks for the cops called it into the Secret Service communications command and control.
Unfortunately that is where the conspirators were.
They did nothing.
On purpose.
With malice.
As planned.
When investigators get to that point the comm SS guys will just say “we did nothing wrong”.
They did nothing.
It reminds me of the kooky leftist mantra “Silence is Violence”.
In this case Silence is Violence.
It will be interesting to see how the SS whitewashes this event and/or shifts blame. You can be sure of that.