I had one of those damned posts jump out of me a few years ago, I then had Mrs Marple (aka of the blue rinse brigade) run upto my car, knock on the window & tell me "I was just about to tell you... you were getting very close to that post".
I politely smilled & said well, its done now, thanks!
Everything was ok though... I was in a company Vectra... Turned out to be the best mod I could've made!!!
Anyways, no moral to this story, just go for pedestrians next time, they make a mess but at the end of the day it wipes off!
Good luck getting it sorted.
Stuart B)