" Freedom should take a backseat when there is a greater cause."
One should remember that freedom is not without limits. I'm free to get drunk, no one has the right to stop me. If I would get behind the wheel in that condition then I am endangering not only myself but anyone else who's path I might cross. Do I have the freedom to do so? I don't believe I do. I do not have the right to take that risk. It is not a "freedom" issue but a saftey issue.
Back when child car seats were becoming mandatory the local police department set up a check point to stop and make sure such were being used.Would you consider such a stop to be an infringement of your 'rights'? Sorry but I'm all in favor of effective measures to get drunk drivers off the road, including random sobriety check points.
You do not have the right to risk others well being just because you feel it's your 'right'.
Much is made of 'freedom of speech' but just try shouting "FIRE" in a crowded place sometime!
Freedom is not an absolute.