Yeah, I hate speculate about it, but I've been told by medical people that if you are that much above a 0.3 BAC, there would have to be the presence of a stimulant in the blood (i.e. cocaine) to keep a person the least bit conscious.
Wow... Here is the info on that level of alcohol...
According to a chart on Wikipedia culled from several sources including the Centers for Disease Control and Prevention, that level of drunkenness could lead to severe central nervous system depression, unconsciousness and the possibility of death.
Bladder function, breathing, stability and heart rate would all be impaired.
According to a chart from Virginia Tech, a 220-pound person who had 10 drinks would register .27. The CDC chart only showed the effects of alcohol up to .15.
The chart didn't have a figure for how many drinks someone of Lutzenkirchen's weight would have had to drink. He was listed at 6-foot-5-inches, 255 pounds during his football days.
Ran it through the BAC calculator. At his weight, 30 beers and/or shots in 6 hours would get him to .376. Considering the accident happened at 3AM, 6 hours of drinking seems about right.