I have yet to see any police on the beat, anywhere - including in London for about a week now.
There’s been the odd one here and there in a patrol car, or unmarked car vastly outnumbered by “car ambulances” - but that’s it.
I would imagine the police would challenge few people obviously dressed for “key work” - from going about their business…
If you’ve got a dog in the back, a bit of skirt in the passenger seat with the nearest supermarket 20 miles away, or dressed for pubbing and clubbing somewhere rather clandestine akin to the old “Raves” in farmers fields that must still go on…
…Then - I would imagine the Polizei might have a beef with you…!