I’m home: Here’s the track of the whole trip:

After buying my beef for dinner, I headed off via a couple of diversions and a stop for petrol where someone in what seemed to be a huge white van (converted into a mobile home) reversed inches away from my bike. I made the decision that an extra hour or so (4 as opposed to 3) on the slightly less boring A1 compared to the thoroughly boring M1 was not worth it so headed off for home down the motorway. I made one stop at Watford Gap Services with a mass of humanity:

Motorway services do not show humanity at its best (though nearly everyone was wearing masks) but I found some shade next to a bush to eat more sushi.
After spending an age on the hot (it was 35 degrees) Euston Road underpass in stop start traffic I made it home by 2.30. As a stand in for what would have been a more satisfying trip to Spain (I wanted to ride some of the TET in Spain) this short holiday was OK. For my next trip a new bike would be a good idea. Maybe by the time of my next trip there will be a vaccination against Covid-19 and the world will be breathing a slight sign of relief. At the moment most things seem uncertain.