I did that one time. As soon as I got past the cop he zoomed across three lanes and got right next to me - about a foot from my door. I looked over at him, confused, and he jumped in behind me - about a foot from my bumper - and turned on his headlights, spotlight and flashing lights. Thus blinded, I pulled to side of the road. The cop got out a loudly berated me for being so "disrespectful" as to pass him. He them wrote me a ticket for 5 mph higher than my cruise control was actually set for. That extra 5 mph was actually the lowest ticketable speed. He wrote on the ticket that I sped past him and looked at him (which was actually me looking terribly afraid and confused when he almost side swiped my car).
That little bit of cop ego cost me $90 and a morning in court.
WOW! Exact. Same. Thing. happened to me on I-5 just South of Bellingham WA some 20 years ago. Exact same thing down to every detail. Cop was a jerk.
The best advise is never to do anything that would antagonize an LEO, especially if you’re not black or Hispanic. If they do stop you, be exceedingly polite and ignore any provocation or insulting remark on the LEO’s part. Like it or not, that’s the way it is.
Things like that are why I keep considering installing a dashboard cam in my cars.