Personally I find it a bit odd that the flying limit is to be so much tighter than the driving limit. Strange as it may seem, things happen a lot faster on the road than they do in the air because everything is so much closer and can change path so much quicker (kids jumping out into the road, for example). And while unexpected things can and do happen while piloting aircaft, the road is a far more unpredictable environment in the short-term. If 9mg is required for safety in aviation, why not behind the wheel? Don't tell me "realism". Realism would allow people to have a single beer or glass of wine with dinner and not have to worry about their jobs the next morning. Even though a single drink will probably be absolutely fine, any enjoyment will be more than offset by the nagging doubt.
On the plus side, all those stations that have moved their Happy Hours and squadron bar opening nights into midweek will now have to move them back to their rightful place on Friday nights! Saturday night Summer Balls are probably history as well...