My son got into a fight with a other scout at the pinewood derby after a photo finish there was no electronic?

scoring and my son got into a fight with the line judge and the other scout teased him about it and then a fight happen, we were thrown out of the derby and the scoutmaster whos son was the scout in the fight called us at our house and told us we were banned for a month and blue and gold banquet what should we do? the line judge refused the challenge. My son has aspergers and the judge had obivous bias for the scoutmasters what should I do?