Why are people stressing over this?
The chances of being approached by a police officer are about as similar as catching Covid. In any event, all you’d have to say is that you’re travelling to a nearby local station and that’s the end of the discussion!
Maybe I phrased it badly - not stressing about it at all
Though I do think travel on the 27th has the potential to be stressful from the 'numbers of people' point of view, especially given it has all been compressed into one day.