Overfilled the brz

Hey guys I really did a stupid mistake the other day. I parked my car at a train station with a slight incline and when I got back 6 hours I saw the oil was halfway. So I freaked out and poured about 300-500ml of oil. Next morning when I checked the oil is slightly overfilled and the oil reading at the train station was false. Some people for BRZ platform a slight overfill is fine but I don’t drive on the track its just a daily. What do you guys say?