Yes they would. I just don’t like how people are pretending to be the Police just to get the reaction they want.
They aren’t pretending to be police, by the simple fact it doesn’t say police on their jacket. They are pulling a minor trick on you, the idea being drivers go “oh shit I better be careful it’s the fuzz” and for some reason they get a bit pissed off when they realise they’ve been careful around a vulnerable road user for no good reason. But I guess you knew that. Vickypea I’m sure they know full well what you mean but plausible deniability and all that.
Oh and the police are giving horseriders police hi-viz around our way!
Saw a horseist with a police horse coat (or whatever those blankets/covers are called) recently, looked a bit old and shabby so presumably one they’d got off a friend on the force. This was offroad btw.