part of our field has a temporary fence they remove periodically for kids soccer, part of left and right field, when its down if the ball when hit rolls past the invisible line where the fence usually is, the outfielder raises his arms and its a ground rule double (honor system) one of our guys hits a shot to left , the left fielder puts a glove on the ball as it goes by, it rolls beyond the line, game on the line runners on first and second,both would have scored and batter would have been on third, blue calls it a ground rule double,was this the right call ,if so where in the rule book can i find the ruling,appreciate any input, thx