I agree... it will probably mean more time you have to spend with this nonsense, and like the Kings and the glider pilot who "terrorized" a power plant, you may be cuffed and detained without actually being charged with anything, then held "on ice" until you can be interro-I mean, questioned by the Gesta- er, I mean the DHS. Might even wind up asserting your rights in court... it could be messy, protracted, and expensive.
But it's worth it, on principle. Just have to ask yourself: what is "innocent until proven guilty" and other search, seizure and arrest laws worth to you? How much time? How much money? How much inconvenience, discomfort or embarrassment? Is it worth your life, to you or society as a whole?
Also, they might treat you like they have an Iraq War playing card with your picture on it even if you do play along. If we say "well, they have guns, so I better smile and nod and be quiet", well, our rights are already worthless, and we are all just "guilty until proven innocent." The guns are supposed to be for the LEOs protection, not to coerce you into waiving your rights. Granted, if you make them nervous, they might shoot you. But it shouldn't unnerve them if you say "I don't consent to any of this without a warrant or probable cause, and I will answer no questions without a lawyer." If they are not showing an armed presence that suggests they've mistaken you for hard-bit desperados like the Kings, it should be possible to say "am I under arrest? No? OK, bye."
The bottom line is we can't afford to make this sort of thing easy for them. They might still get away with this crap even if pilots refuse consent, protest, sue, etc... but they will definitely get away with it if we play along with LEOs who are creating the appearance of having more authority (and evidence or probable cause) than they really possess.
If it ever happens to me, I will resist peacefully, but I will not consent.