So when they pulled David Bisard over this time, he blew a .17 BAC at the roadside. From what I am reading, they carted him off and drew blood (following the proper protocol this time) and got a .22 at the hospital.
Part of this disparity could be chalked up to the different systems, I suppose, but another part could be that he was still metabolizing alcohol, since when they fetched a warrant and searched the truck, they found a partially-emptied bottle of vodka.
Friends and neighbors, being upright and running around and engaging in conversation, to say nothing of operating a motor vehicle well enough to get to the crash site, with a .22 BAC is not something that amateur drinkers can do. Those are the actions of someone on the pro circuit; a high functioning alcoholic. That dude is in serious need of a drying-out.