Re: What Can Happen if You Refuse to Cooperate at a Checkpoint
for them to force compliance or penalize you for a failure to comply, the orders would have to be valid under an administrative exemption to the application of the various Constitutional rights being violated. Personally I have a real problem with any such exception as it leads down a slippery slope to removing all rights via "administrative decree".
Offhand I do not know what or if there is such a valid exemption. I know that at the national boundaries there is. The TSA operates under such an exemption as well. DUI checkpoints do as well.
I am not an attorney and any advice is not to be construed as legal advice. You might even want to ignore my advice. Actually, there are plenty of real attorneys that you might want to ignore as well.