Hit 1 month ago and other part calls just now..

hi, i currently need help with my problem. 1 month ago i was at fault at a very minor car accident. i was reversing at a parking lot, and from my blind spot a car comes rushing through and hits my bumper, there are no dents after the hit just paint scraped on my bumper and his 2 doors. i didnt really find the dmg that big of deal so didnt realy mind so much. and it seemed he didnt either, we just got each others names and numbers and license number..no insurance information was traded i thought he would call me after a day(no report was made at the site), or so but he didnt, so i went ahead and repaired my own dmges to my car which was just paint. 1 month later from the accident he calls me wanting to settle the accident and file a claim and everything, but im already past it and have repaired my car. so my question is isnt he to late to file a claim? do i have to continue discussing the issue with him? all he has on me is my name number and license... can he take legal action on me with just that? so should i actually continue to file the insurance claim or wil it b safe for me to leave it alone? thank you for ur advice