I regularly drink 6-8 beers and a few shots then drive home. Only pulled over once in the past. Luckily that night I had not drank very much. I refused the field sobriety test but said that I would gladly take a blood test. It was like a 45 minute drive to the facility, I pissed myself along the way thinking that it would get more out of my system. It took some time for them to get the vein. I was .07 by the time it got tested so I got off lucky. My advice is to get some mouth wash in your mouth at the time so you blow so high, like 1.68 so it looks like the machine is broken. I am so broke now that I actually don't drink anymore so that is a strategy too. Unless I find some nearly empties in the trash, it is a dry day for me.