Car full of cops and rage

So here's the thing... I (45f) was driving in the middle lane, switched to the left lane to overtake a truck. A car comes up quickly behind me, then the guy in front of me brakes suddenly, forcing me to brake suddenly too. I go along, overtake the truck, a couple of other cars and move over back to the right hand lane. The guy who was behind me starts driving alongside me beeping.. I ignore him. He then cuts me off and brake checks me and slows down to a crawl. As I'm crawlling behind him, shaken, I take my phone and take a photo of his car. Another lane opens up to my right, so I pull into that and drive normally. He comes alongside me, rolls down his window and yells at me in Arabic, with his passenger filming me on his mobile. I rolled down my window and tell him "you can't do that to me" literally, all I said, no swearing/fingers, nothing.. that's when i notice this car is being driven by 2 or 3 cops in uniform. But the car is a private car so they're obviously not on duty.

So now they're raging and drive off but they've filmed me and I'm wondering what to do. I didn't do anything wrong. But what if they lie and make something up? Should I go and report them first or wait and see if anything comes up?