"emergency legislation to force supermarkets to reduce delivery times to no more than 2 days and waive delivery costs and minimum order sizes."

Seriously? You expect them to buy more vehicles, hire more staff to make even more deliveries than they are doing now?

The sensible suggestion would be for friends and neighbours to pool their order so that one delivery could be made for 2,3 or 4 etc households.

Supermarkets could not have been expected to plan ahead for this sudden increase in demand for home deliveries. Hopefully things should settle down a bit once people have got their stockpile in.