Question is, just what are these disciplinary procedures? And are they adequate to ensure the power-hungry goons at the checkpoints don't get overconfident about their newfound power to question the operating crew who looks at them in a manner they don't like?

If the information is accurate that the FO has been cleared, terrific. BUT he will most likely be remembered as "That FO that got done for blowing thebag".

No matter how he was arrested, on the flight deck, or if the wallopers had the decency to say "Meet us in the Terminal", he was still removed from his flight, and charged. That is something that will probably stay with him for life now, no matter the outome of the legal process.