Will try and keep this quick 
but I’m so annoyed by the car park stand off I’ve just had that I need to know AIBU?
So, I’ve just been parked up in a dark car park, in a dark coloured car, no lights on. Another car pulls up and starts to reverse into the space right next to me, which is a disabled spot so huuuuge, and with plenty of other spaces around. Car reverses at a funny angle, at speed, and VERY close to my car, so close both passenger and me think it’s going to make contact.
I pomp my horn, car keeps coming so I lean on horn. Driver peers round at me shouting and gesticulating. She finishes parking (with me and passenger both wincing), winds window down and starts having a go.
Apparently I’m BU to have pomped as she has reversing cameras so knew I was there. My stand point is; you were literally an inch away from my car (when there’s two whole empty spaces to play with), I don’t know you have cameras, I was warning you that I was there. Car accidents happen every single day so I was making sure you didn’t hit me. She thought this was a ridiculous point and can obviously drive properly as she has passed her test 
, “people wouldn’t pass their test if they didn’t know how to park”.
I’m so annoyed by her attitude, but she clearly thought I was completely ridiculous. I think it would have been ridiculous for me to have sat in my car and just allowed her to reverse into it. So Mumsnet, AIBU?