There is no CDL carve out from the 4th Amendment. Violate the terms of your CDL? ....lose your CDL, however that is administrative in nature and not criminal procedure. However he was unconscious an incapable of consent....therefore the very easy work around is to get a warrant. The nurse was 100% in the right and the cop was wrong. And he should have known better than her that he was wrong. Need the blood now? Get the warrant.
