[crocos]

Nich, that could be the police doing their actual job.

MIL at Cafe: The cops have been told to confirm & enforce the "no seated customers" piece, so that's... normal.

Cousin / Daycare: So? Police wanting to confirm the trip is a necessary trip - feeding the fish was probably the reason it was acceptable to avoid cruelty to animals

Elderly picnickers: GOOD. Should only be going out for exercise, not for a pleasant lunch.

Idiot friend: This one is on the friend. Even if he was up to something nefarious this could totally have been defused before it became a thing by being polite and just saying he was feeling a bit of cabin fever so is out for a light walk as exercise. The cops are as stressed as - probably more than - your average citizen, and mostly* they're not out looking to cause issues for people, but at the same time it's on them to enforce the isolation rules - checking that the person WAS doing an approved activity is completely within their remit, checking that your mate wasn't wandering over to someone else's place is also legit.