Well, got the car back safely. Won't be able to do much until weekend since I am on-call today.
Mostly reading the manual today I think.
Distance from curb was to protect alloys!
The road was cut away after single yellow line before the curb, so any closer would have been risky.
Interestingly a black z4 e85 was parked a few cars behind me here. (just off long acre, holborn)
Maybe try to take some moonlight photos tonight if there is any left.