Interesting drive to Bluewater from Bexley

This is part of my journey to Bluewater. Courteous lady driver, and let cyclist filter pass. On the A2 in busy traffic, a blue Mercedes SLK was cutting in and out, changing lanes, and tailgating. The SLK forced another Mercedes to brake when cutting in front, after undertaking. I was driving at speeds appropriate to the conditions and keeping a safe stopping distance.