We never thought about what to do in situations like this as well. Basically the messages I have seen from the cycling community "WarmShower" has been great. Some people have offered their home/backyard/barn to accommodate stranded cyclists in some of the European countries that are in current lock-down.

Our trip to the UK has finished - but the blog hasn't caught up yet. Been busy settling down in London, but hopefully get back into full swing and involved with TravelFeed