Can Gilbert S Syndrome With High Bilirubin Interfere With Metabolism, Increase Alcohol Levels?

Can having Gilberts Syndrome with an elevated bilirubin count -- consistently between 2.5 and 3.0 -- interfere with first phase metabolism and increase blood alcohol levels? Can a nissen fundoplication from four years ago, similar to a gastric by-pass, interfere and increase these levels? I was recently stopped and tested over 1.0 BAC and had three beers over two hours and am dumbfounded as to how this was so high. Thank you.