CUSTOMER SUEING US FOR UNMATCHIBLE PAINT ON A TOYOTA COROLLA PARTS 400.00 IS IT WORTH GETTING A LAWYER?

CUSTOMER CAME IN DROP OFF A HOOD, FENDER AND A BUMPER ORDERED BY THE CUSTOMER TO BE PAINTED FOR 400.00..WE MENTIONED TO THE CUSTOMER VEHICLE NEEDED TO BE HERE TO MATCH AND BLEND. CUSTOMER STATED HE WAS GOING TO INSTALL PARTS HIMSELF AND IT WAS A BEATER CAR FOR BACK AND FORTH TO WORK AND HE UNDERSTOOD PAINT WILL NOT MATCH ALSO VEHCILE NOT BEING HERE WE CAN ONLY MATCH OF WHAT WAS GIVEN BY HIM. AND HE UNDERSTOOD WITH IT BEING A 13YEAR OLD CAR THAT PAINT DO AGE IN TIME. SO HE DID NOT WANT TO DROP THE VEHICLE OFF HE JUST DROPPED OF A DAMAGED FENDER FROM HIS VEHICLE TO MATCH IT WHICH WE HAVE TRIED TO THE BEST OF OUR CAPABILITIES TO MATCH. WITH THE CAR NOT BEING AT THE SHOP WE HAVE NOT IDEA IF THE ORIGINAL PAINT IS THE ACTUAL PAINT OR IF IT HAS BEEN PAINTED BEFORE SO MATCHING IS VERY TOUGH SO WE TRY TO COME CLOSE OF WHAT WE HAVE. HIS PAINT IS A TEAL GREEN.