Sounds like your buddy is trying to scare you. If what you described did indeed happen to your buddy, he shouldve got a lawyer and went after the collection facility. They cannot legally make you drop your drawers to check for any cheating contraband unless you had been suspected of tampering or intent to tamper. If no intent to tamper is suspected, they can only have you remove jackets, hats and emptying of your pockets. This is clearly outlined in the DOT regulations as well as DHHS regulations.