i was involved in a accident with a parked car i gave th guy $900 dollars for damages and even after the fact he reported me to the police department

i was involved in a car accident with a parked car, i gave the owner of the car my information and my identification, i gave the guy $900 dollars for his car repairmen and he even signed a contract for me, now he reported me to the police as a hit and run when in fact i did not leave the scene for 3 hours and no cops showed up, i did not have car insurance due to the fact that i still only have my permit. now i have a fine for driving with no insurance , a hit and run what should i do ??