someone over twice the legal limit is not borderline
They keep lowering the limit. When I got my first driver's license in NY State in 1963, the limit was 0.15%.
I really have no idea what my the relationship between my blood levels and ability to function normally is (I've only been stopped once and that was six hours after I had one beer with lunch.) but I seriously doubt that I wouldn't be able to pass some reasonable performance test at this 0.18% if the descriptions of what it might take to get to that level are accurate.
ML/NJ
May be impaired as to ability to drive, but not knowing you are in the wrong house? Just because the legal limit is at .08 does not mean that .16 (twice the legal limit) is twice as hammered. The legal limit used to be .15 for a while, and a person at .14 was therefore legally considered to be able to drive a car.