Keep in mind, these draconian limits. Have 2 beers the next hour, and get into your vehicle. Are you incapacitated, incapable of judgment?
Probably not.
I don't diminish drunk driving. But there is nary a State that doesn't nail folks with a few drinks in them, extract a nice buck out of their pockets...all the while having a solid core of real problem drivers.
And when they are finally hauled off the road and incarcerated, the politicians scream at the courts and the police forces, so they can get some face time.
Here in OH, we have checkpoints - all passing the route they set up on, are stopped. The assumption is...guilty - prove your innocence.
These are only set up in good weather - almost always funded by the general taxpayer - federal $$$.
Curiously, there are no checkpoints in the colder months. So is it so, that there is no drunk driving then?