"Not drunk and was able to drive home without being tempted to get more..."
WE tend to be alcoholic and don't "feel" drunk.
I did a random search and put in that you had about 12 ounces of wine at 20% alcohol content in 2 hours with a body weight of 150 pounds and the results are this:
"In MOST and probably ALL states you would be considered intoxicated and arrested for DUI or DWI."
Just cause we don't "feel drunk" doesn't mean our reactions are normal. I'm glad you arrived home safely! (and everyone else on the road)
http://www.csgnetwork.com/bloodalcolevelcalc.html