When I first mentioned rationimg I did so simply saying if you are trying to address a mismatch between supply and demand you can do so at the supply end by stockpiling or the demand end by rationing. That does not necessarily mean government issued booklets, and almost certainly would not because of the popitical cost. But that does not mean there would not be rationing. For example when Tescos limited people to two lettuces at a time on Feb 2017 the Independent actually uaed the word 'rationing'and I dont think many objected or thought the word inappropriate. It is, I think, quite likely supermarkets will impose that sort of rationing for "the duration'. Some people seem to think will just be a few days at most
But it aeems at least possible it is far longer to me. It is no simple matter to rework sources and delivery paths.