I think redteam physical security is a necessary practice, and it’s a fun career for people I know in the industry, but you wouldn’t ever be able to convince me to break into a facility with an armed response without first telling the actual security on site (in this case the police, and all of them at that) that there would be a red team test between a specific set of dates and NOT TO SHOOT. This could have gone much worse for the poor bastards who got arrested.

edit: not that that justifies at all the absurd response of the sheriff in this case.