126
You can’t gridlock there, mate
(feddit.uk)
For all parking disasters, not just simple bad parking (for that see yplac.co.uk).
Also includes "you can't park there, sir" for the police equivalent.
Rules:
I’d argue #2 is completely at fault as they pulled out into the path of 3, who had right over way over 2 and 1.
1 had to wait for 3. They might have been overcautious but there might have been something going on down the road where 3 was coming from that wasn’t visible to the others.
2 was supposed to wait until their exit is clear before moving.