LD50 is supposedly .40%.
“A BAC reading of 0.08% is legally drunk driving in the United States. Unless a person has developed a very high tolerance for alcohol, a BAC rating of 0.20% represents very serious intoxication. In general most first-time drinkers are unconscious by about 0.15%. A range of 0.35% to 0.40% usually represents potentially fatal alcohol poisoning. 0.40% is the accepted lethal dose for about 50% of adult humans. However, in rare cases a very heavy long time drinker may be able to more than double that number.”
In that state it’s not impossible he moved a decimal point. Could he have tested 0.36, i.e. very, very, near-fatal drunk?