OK, so I rented a car in NY and got sideswiped while parked over a weekend

I have the Chase Sapphire Reserve so I should be covered but I am not sure how to take care of the police report.
I went into the precinct and they told me I could either go back to the scene of the accident and call 911 or fill out the form MV-104 and mail it in. Having a flight to catch I took the form.
Now I am having some difficulty completing the form... anyone have experience on this?
Here are my questions:
- Date, do I date the accident as the date I found it or leave it blank?
- Being that my car was unoccupied, I leave driver 1 blank, correct?
- How do I complete the registrant info for vehicle 1? Do I contact the rental company for all that?
- Insurance, how do I fill this part out?
- I have 10 days to file the report, does that go by postmark or receipt? Today is the 10th day!
If anyone can give any insight I would greatly appreciate it.
Thanks!