A guy in my apartment complex was pulled over on suspicion of DUI. He had the flu at the time was never given a sobriety or BAC test. (He's also an immigrant from South America, which probably doesn't help around here.) However, until his hearing before the judge, he had to have an ignition sobriety lock installed on his car which requires him to take a breath test when he starts up and then periodically, or else it slows down and stops.

I'd count that as pretty "creative", and not something I thought was even done anywhere (unusual). And it gets into "cruel" territory since the guys that install it are lax about the battery quality of the device putting you at a huge risk of being stranded.

(yes, that means I made a new acquaintance and hit it off well enough to drive around with him, blah blah blah)