If you read the RTA demirit handbook you'll notice that if you have a drink while driving you're up for loosing 3 demirit points. This came in power at the same time as the mobile fone one but its not being pushed as much.
Not many ppl knew about this one including my friend who's a cop.
BTW we are not talking about alcohol here but water or soft dring from a bottle, cup or anything else they come in, and the funny thing is, you don't loose any points for drink driving.