National Car Rental

I was renting a car at National car rental on 12/17 at Lihue, HI. In Hawaii. all vehicles are required to have safety check, registration and proof of insurance in the vehicle all the time. I was having a hard time to have a copy of safety check for the 4th car that I looked at. The previous 3 cars did not have any legally required paperwork.
When I talked with Angela, the manager on duty. She told me no need to have the safety check paperwork to get to the base on the island. I told her the pass & ID office needs such paperwork. After 20 to 25 minutes of heated discussion, she was able to find a car that has the required paperwork. It was a total waste of time to beg or ask for the paperwork.

Can you make sure all the rental cars have the necessary paperwork? I am trying to obey the local traffic regulations here..