Further complicating things is that the guy left for two months for military training. The truck is not parked there anymore, though he had told us he was leaving it there.
It's a real shame the girlfriend chose to go off on you like that. That was not fair at all. I don't think there is anything you can do to fix that. But now you know what kind of person she is.
I also want to add that I'd be highly upset if an angry neighbor came at me with the words 'police report' in connection to my child and the same angry neighbor dumped, however indirectly, all her frustrations onto my child. (Though I completely agree, the police report protects everybody.) Again, now you know what she's like.