I could support this if it came with other changes to the laws.
1. Open containers are legal. Is drinking a beer more distracting than a soda? Is having a bunch of drunk guys drinking in the car less distracting than having a bunch of drunk guys drinking in the car while you make your way to the next place? I'd even support a tiered limit, lower if there is an open container.
2. Rezone to allow more bars near houses. The closest brewery to my house is about nine miles away. The nearest pub is over four miles. The nearest place to buy packaged beer is the grocery store over a mile away. If there was a bar in my neighborhood we would hang out there, now we just rotate houses between about five families. I miss living in the city
We also need to invest money in things like google's self-driving car, with no requirement that the person in the car be in control. I would totally let that thing drive me everywhere even if I wasn't drinking. I could nap, read, talk on the phone, whatever. I would pay for that. If the self-driving car isn't safe enough, set it up like a drone where someone somewhere else could take control if needed or the whole time if required. It would be cheaper than a cab because it is your car, and you could charge $0.50 per minute to have someone remotely do the driving. GPS mapping so you don't need to tell the person where you are going, you type in a destination and wait for someone to log on and drive you there. When they are done they park and switch to the next car so they can keep getting paid. Damn, I really want that. I don't mind driving in general, but sometimes it feels like a complete waste of time.