......As regards the beer on board the Portsmouth/Caen, it has always been beyond my capacity to drink them dry 
Many years ago, on Newhaven/Dieppe, we may have drunk the bar dry about an hour out of Newhaven, but its more likely the bar closed because it was time for the crew to have a rest under the "old" French labour laws. Fortunately, I had acquired a case of beer from duty free earlier. That was also shut, but being assaulted by all and sundry.
I think its too early to predict what will happen race week, but if France start losing the football, it could all go pear shaped. I'm taking emergency rations for Tuesday. And don't forget that the public road of the circuit doesn't reopen on Thursday, so shopping is going to be under plan B.
And good luck at Shelsley.