I only drink two beers a night. The First and the Last, the Ones in-between are extensions of the 1st beer.
Now in all seriousness, if it was three beers in two hours, he'd be close to the limit. It does not give him the right to drive home. How many of us had a few beers over the holidays at a friends or a relative then drove afterwards? If he was over the limit, then he should get charged, if not, then it should be gone. As for slurred speach, a cop can say that cause there is NO evidence that can support it or deny it. It just sways the cops way. The only way he could prove it was that it was recorded, but then legality stuff steps in. I wouldn't trust a cop on stating a person slurred. I seen it happen way to often where a cop entices a situation too. But I seen it the other way too if someone would just keep quiet, but couldn't. Things will come out, his Blood Alcohol Level. if it is over the limit then he deserves to be charged. But by the way that it took awhile to become exposed, I would think that he fully co-operated and didn't make any problems. WE all are not perfect, we all make mistakes. The most important thing here is, that there was no injuries or fatalities. It's a mistake that we can forgive him for and we can all pray that he has learned from his mistake.