Unless the police decide that he might have done anything illegal, he doesn't have to tell ANYONE where he was going or why he was going there. Even if someone wants money for the hydrant, he doesnt have to say WHY he lost control and he hit it. I don't blame him at all for not wanting to talk to the media, the police, or anyone else. Your private matters are kept private, and you like it that way.
Also, if she decides to say anything (assuming she was actually after him for something he did), she gets charged with assault for going after "the car" with a "weapon". Guaranteed.