Daftness with bike this afternoon

[nikaiyo2]

So going to see my mum this afternoon, pull away from traffic lights police car is 4 or 5 cars back just as the lights turn green he puts his lights and siren on I go through junction and pull over maybe 20 yards past indicate so he can see what I am doing and pull over to let h8m past.

No problem.

A motor bike had followed the police car, un known to me, so when I pulled back into road he was almost alongside so he reved the tits off his bike and went through giving it the beans etc.
He 100% was not behind me at the lights, that was a girl in a fiat 500 behind her was a bloke in a van who looked a bit like a guy I know, I was looking to see if it was the guy I know.

I was a bit shocked so swerved out his way and kerbed a wheel.
So he took off like a dick and I stupidly followed, he tried to get away but struggled, so we were going a bit quick.

I know stupid tt, I should not have risen.

Should I report it? Not looking to get the guy in st or anything just protecting me.

[nikaiyo2]

Ahh ok my bad, did not realise that following a police car at 50% above the speed limit was right.

I would 100% agree my bad if the bike was behind me, but he was not, the van and fiat were still in my rear view mirror so was not looking for other road users to come behind the police car.