The French Transport Ministry is determined to enforce stiffer laws regarding drinking and driving because the French people are demanding that they can get pissed middays, afternoons and evenings!
The French regard wine as medicine not alcohol and as far as drinking the stuff, it only turns into "qui qui" so therefore driving is not a problem and the Ministry of Transport agree because they are all a bunch of "qui qui" artists.
They have passed a new law forcing French drivers to breathalyse themselves and if they are under the limit they will be ordered to order another bottle; in other words killing two birds with one stone. More wine sales, better for their failing economy and saving costs on Gendarmerie check-ups, clever, qui, qui!
French drivers are obligated to carry 2 breathalyser bags with them on every journey. The second one is to confirm that the driver is actually pissed and above the limit so the police do not have to intervene when they observe the cars swerving.
For foreign tourists travelling through France the rules are completely different, zero tolerance re alcohol consumption (typical French chauvinism)!
New signs are being put up on the motorways warning foreigners to stay clear of swerving French cars and trucks and if they collide with them the foreigners face a six month jail sentence and 5000 Euro fine; you have been warned!