Gentlemen and ladies,
Rather than speculate and pass around rumors and old wives tales, I would like to suggest reading the FAA manual on how inspectors are to conduct Part 91 Inspections. The FAA Flight Standards Information Management System (FSIMS) is online and public. You want to go to FAA Order 8900.1, Volume 6 Surveillance, Section 4 Conduct A Part 91 Ramp Inspection. The text that you will find is exactly how the FAA instructs its staff to conduct themselves, what info they ask for, and how they follow up.
Its all on the internet at .gov.
As an airshow performer, I was "ramp inspected", that is tech inspected, at every show. Part of the routine. If you know the drill it is not a big deal. Knowledge is power....
Enjoy,
Wes
N78PS