Call the officer's supervisor and insist that you want a report and action. My experience with the police is that they'll do as little as you'll let them do. If you have an issue, call a supervisor. If you have access to an attorney, have the attorney call the supervisor. ALWAYS be respectful, but explain your position and don't back down from it. Tell them you expect them to investigate this hit and run incident in which you were injured. Ask them what steps they're taking. If it doesn't seem adequate, or if you're being brushed off, push. They are our employees. Did you see the car that hit you? Have a description? If he hit you that hard, he might have damage to his bumper - you want notice to go out to garages.