Frank would of been fired so fast
Considering he also brought a guy with a gun into the booth, his speech all well and good was a very passionate mostly selfish rant about himself, if this actually happened in real life and you saw some nut job go off you'd probably switch over or just watch this car crash telly happen, Frank was also showing signs of stress before all this happened right in front of the head guy so having a shotgun in the office/on set means heads are gunna roll....
What about the office too? surely someone at their desk will question why their monitor has a massive hole in the middle of it, hardly able to brush that under the carpet without anyone asking questions