I call my insurance and they're like, "teah we have nothing to do with this, you need to file a claim under the ladies insurance."
Are you sure that's what they said? I don't mean to imply you are lying, but I do think you misunderstood.
Unless you have no collision coverage, your insurance company should be handling this whole thing for you. Since there's no witnesses or dashcams, and she's obviously not going to own up to it being her fault, it'll likely be "no fault" and you'll be on the hook for your deductible and a rate increase next year, I'm afraid. Sorry, that sucks.
EDIT: Oh shit, I just saw you said this was months ago! Yeah dude, you need to start pressing the issue to get your car fixed. Settling things with Hertz can take as long as your insurance wants, but getting your car fixed is completely independent of that and should have been done, well, months ago.