DUI police checkpoints aren’t just unconstitutional, they’re also ineffective. Albemarle’s stopped 545 vehicles last night, and found two people who above the limit. That’s a 0.3% success rate making it, by any rationale, a total waste of time. More effective? Watch the cars go by and pull over the people who are driving badly. That being the purpose of DUI laws.
Of course, they weren’t just looking for people driving drunk, and that’s how you know that these checkpoints are bullshit.* They got eight people for driving without a license, three people for driving on a suspended license, and two for not having an inspection sticker. They got 650% more people for violations other than that which they’re using as their justification for pulling people over without probable cause. That’s standard, not incidentally. The DUI business is a fig leaf for conducting unlawful searches.
I’m lucky I’ve never been pulled over in one of those. Do I cooperate, or do I refuse, explaining that it’s unconstitutional? I have no idea, but I resent that I have to worry about being put in that situation.