Hit and run. Mechanical damage only. Incident took place 3 months ago. Did not realize mechanical damage until after. Insured with Geico.

I had a very high collision deductible at the time and a very low uninsured motorist property damage deductible at the time. Since then I have lowered my collision deductible without an adjuster take a look at it. The very minor accident took place 3 months ago after I made a left turn at the light. The other driver crossed the line. As soon as I stepped out of my vehicle, he kept talking me out of it. "Nothing happened''. He didn''t exchange info, he didn''t even bother stepping out of his car! Since I didn''t see body damage, He said ''We''re both lucky'' and took off. Later I noticed the rubber molding of his 90s burgundy Volvo (no tag #) bumper swiped my alloy wheel which I removed with cleaner. I also noticed steering damage (which is hidden). There were cameras at the intersection. How do I make other driver pay for my damages? Where do I go to file a late report? Geico told me hit and runs take place all the time in Atlanta without a tag #. Just need a report.