Car Park Rage

About to enter a disabled parking bay so we had room for exiting and entering with my elderly and infirm mother, a gentleman decided he was having the space for his expensive sports car.
When I tried to let him know we needed the space, he put his middle finger up and told me where to go.
Normally that would have incurred a significant thrashing for the chap, however I was with my sister as well as mum, so we moved further away and eventually parked.
Now never one to be childish, once mum was inside the venue we were attending, I went to check the rear tyres of the sports car, as when the gentleman put his middle finger up at me, I think I noticed they were decreasing in volume.
I was right. Although the rest of the tyres were OK, both of the rear tyres were flat, but only on the bottom.
So I decided not to inform the driver, thinking to myself he might like them flat on the bottom.
Oh well I thought, back to taking care of mum.
About twenty minutes later we all heard a lot of shouting from the car park.
I was wrong. Apparently the gentleman doesn't like his tyres flat on the bottom.
As we drove away half an hour later, he was still waiting for car rescue service to attend him.
Now I'm not one to gloat, but I did chuckle a little bit as we drove past.
However, and it absolutely shocked me, both my sister and my mother waved at him having put their windows down, using two fingers to suggest he had two irregular shaped tyres, I think.