Can I get done for dangerous driving?

Basically I was riding my bike to work and filtering past traffic. The car in front of me was moving slowly as it had just ped a crossing where the lights were previously red (but green now). I continued to filter between it and one slow moving car on the other side of the rode when I see a police car with its lights on on my side of the road coming toward me. Obviously I didn't want to be in the way so, as it was a split second decision, I opened the throttle to accelerate between the car and the one on the other side of the road and then moved over to the left to let the police car past. The policeman driving the car mouthed something at me aggressively as they went past so I'm worried about getting done for dangerous driving or something. The only other choice I had was to try and slow down and get behind the car I was going past, which I didn't feel confident doing as the police car was coming fairly quickly so I accelerated ahead and then cut back in. I was probably doing less than 10 mph before but maybe 25 after I accelerated. Can I point out there wouldn't have been an issue if the police car wasn't overtaking on my side of the road so do you think they can charge me? I wasn't stopped at the time but I think they have cameras on the car and could've taken my number plate if they turned round. Any help appreciated.