Not wishing to be needlessly insulting but unless it was a one time thing I think one drink every 9 minutes for an hour and a half would put you in the realm of being an alcoholic. If your liver was so accustomed to processing that much alcohol that you could function well enough then you would definitely be an alcoholic.
And that seems to me to be what is missing here. This women has a bad drinking problem and just in terms of improving her life the energy put into this court battle would quite probably have been far better spent on dealing with her drinking problem. I don't think the prosecutor was doing her any favour by taking such a weak case to court.