HE still owes money on it
If your dad owes money on it, shouldn't HE have full coverage on it? All banks/lienholders require it.
That whatI was going to say. If your dad owesmoney on the truck to a bank or other finance companythe lender always requires full coverage on the vehicle. Also if you are living in the house and are licensed to drive the insurance companies require you to be listed on the policy as well.
So, I don't really see what the problem would be with you going hunting.