I just think the way they enforce drunk-driving laws is a little too harsh, yet I don't think the punishments for drunk-driving are tough enough.
First, I think you really should be driving the car on the road, that is you're moving, AND you should be impaired, weaving, driving too slow/too fast, etc. Otherwise, if you can drive perfectly OK while drunk off your ass, I think you should be able to do it. So the law really should be about the quality of your driving, NOT whether you're drunk or not.
Then if you are impaired and are a threat, you should definitely be punished. I think the laws are too lax, you really should lose your license for a year on the 1st offence like in many European countries.
Then if you're busted a 2nd time or if you kill someone while drunk, you should lose your license permanently!