Italy has issued temporary passports to several hundred Tunisian refugees who want to go to France. France yesterday suspended train service across the border at Vintimille to prevent their entry, although it says that it recognizes the "conditional" legality of the passports under the Schengen agreement. What I suspect is happening here is that France simply wants to publicize its "resistance" to the "influx" of refugees but recognizes that in the end they will come. So we'll see some skirmishes like yesterday's to minimize the number of mass arrivals with banners waving, but eventually individuals will filter in with their legal passports and that will be that, but the Front National will do what it can with the news.
UPDATE: The European Commission backs France.