The SBPD still sound pretty inept.
They thought EPIC was a "private company", which it certainly is not. They didn't comprehend serial numbers and wanted a VIN of the aircraft (which they had to ask the owner for assistance). They had to rely upon the aircraft to TAXI TO THEM, rather than roll out and stop the aircraft. I mean, if there truly was a threat, one would think they'd intercept it instead of hoping the aircraft would roll that way.
Sorry, pre 9/11 or post 9/11 this is straight up keystone cops.