It's a perennial problem. How do you keep drunks off the road? We've tried all sorts of things: We arrest them when we see them, we call 911, and there are ignition interlock devices for those who have already offended.
One company has come up with an imaginative solution to create on-street relief stations that don't look like relief stations. The PPlanter actually looks more like a penalty box, with bamboo growing outside it.