Too many humans flocked to the Akron Zoo Monday.Free admission on President’s Day and unseasonably warm weather proved to be a winning combination for zoo officials who had hoped to spark interest on a day when kids and government workers had plenty of leisure time. The line of cars awaiting entry at the Akron Zoo split out into the surrounding neighborhood, clogging the streets shortly after the park opened at 11 a.m.With police monitoring traffic, the gates were temporarily closed from noon to 1:40 p.m.