You made a mistake posting this here. ATOT is INCREDIBLY ignorant and self righteous on this topic. The DUI limits are set artificially low for the exact reason that .081 is, for all realistic purposes, the same amount of impairment as .079, and one is legal, one is not. Why would they set the limit as a true, incapable of driving, drunk? Otherwise those .079ers would still be killing machines.
You can spout all the lines like "impairment begins with the first drink" and "six beers is drunk no matter what", but these things are foolish. As someone else pointed out - you are more impaired when you're driving tired or distracted than someone at .081 is. And I bet 90% of you people spouting off here have done that. Also...six Coors lights over four hours for someone that isn't a 100 pound girl is not that much beer, at all. Coors light has very little alcohol in it, and four hours is a fairly long time.
Oh - and to whomever made the snarky "fish and chips don't metabolize alcohol" comment - while what you said is technically correct, eating DOES slow the rate of alcohol absorption, and considering your liver does this magical task of metabolizing it for you, when the alcohol is absorbed into your bloodstream slower, you end up with a lower BAC. Eating before and during drinking is pretty much the one thing that absolutely DOES make you less drunk per drink.
Anyway, I'm sure I'll be attacked from every angle for this post, and I really don't care.