If you recall I went through Dover a couple of months back. They had 3 booths open at 1am and the queues were hours.
Today the authorities have prepared. 12 booths capacity, staff requested to be working these 12 booths 24 hours a day, no stinting payment, working with the French authorities to make sure it will all go smoothly.
Half the French border force didn't turn up to work or turned up significantly late. Late enough to cause total gridlock. It is high time the UK authorities started talking to Belgium and the ports of Oostende and Zeebrugge and started providing funds for ferry lines to sail to these ports.
The next possible step is to remove the French customs booths from the UK and force the checks on French soil. This should significantly mess up their own port which moves quite smoothly. Then, of course, UK border staff could become unavailable in Calais leaving queues for miles. The main problem with that is there are miles of roads which feed the port which don't inconvenience the town. So it would not be as bad as, for instance, Dover.
Calais is now 2x or even 3x the size it was the last time I sailed out from Calais. The best message would be to leave it empty because other European ports are carrying the load.
My own journey back is from Dover, August 6th. I booked an 11am ferry and the Travel Inn right by the port for the night before. My intention is to be in the queue, in Dover, some 4 hours before the ferry departs. I'll probably be late for the ferry but it is what it is. I can understand why the other crossings were 3x the price of Dover Calais.