Sharraxaadda

I live in the Flaherty Farms subdivision. It appears someone drove their car into one of the columns at the neighborhood entrance on Flaherty Avenue. This happened several months to almost a year ago; I remember seeing tire tracks leading up to it and they seem have to left their headlight at the scene. We do not have an HOA, as I'm sure you are aware, so I was wondering who is responsible for fixing the column? It is quite an eyesore for such a wonderful neighborhood in Wake Forest, which my family and I have called home for 17 years.