Vehicles without number plates.

How many motorcyclists were there, Frank?

Do public parks require number plates? Why shouldn't the police stop their (whose?) car?

So many questions.....

I am amazed at the situations you find to complain about, Frank . A motorbike without number plates in a park (so not public highway). You say the police stopped their car, but do not say whether they stopped the motorbike.
A piece of burning paper nearly landed on your garden .
Someone in a pub had a go at you about that house business.
You get spam phone calls about PPi /personal injury/payday loans.
Some gym classes are women-only.
Oh and you heard fireworks round about Eid.
Your dog barks in the night (not blaming Andie, dogs usually do bark)
but really - is it worth getting so het up about so little?

You do sound as though you live in a rather rough area if all these things are going on around you ?

ANA

The only car (I don't know about motorbikes) that may - and does - legally drive on the public highways without a number plate is one owned by the Queen. Maybe she isn't insured or licensed.

If she rode a motorbike, I bet it would be MAJ 1. But would she be allowed to wear just one of her Hermes headscarves (as she does when riding) instead of a crash helmet?