How long was he there? If you know where he went the client might would know which company he represents. I'm not quite sure of the law regarding drop-off's so I can't comment, sorry.
This guy is clearly a selfish arrogant prick in a hurry. Expecting everyone else to get out of his way when he wants to drive like a petulant child. Eventually he'll cut up someone who will kick his arse up and down the street till he cries like the baby he is.
The video is on You Tube. Search under BT52 YCG - and watch my left hand mirror as you see her in the wrong lane then cutting up a HGV.
Thanks for your input 👍🏻
Shame that blue post doesn't have a BMW badge then you could have a go at it blocking the adjacent bay !