Yes call back. I spoke to AA today and was told:
I can rebook and travel up until 9/2018 but I would need to rebook at the time I call.
If I flat out cancel I get a credit and the credit I would have would need to be used by 4/2018.
I should add that my trip is in November so I am waiting another few weeks before doing anything. I would need to act the day before my flight out.

She said when calling to remind the agent that the rebook fee should be waived due to hurricane

Note~ I do have insc but called directly instead. I also used miles for one leg of trip and purchased the return ticket. Same story for both.