Aldershot skipper Ben Herd was unhappy with the referee's penalty decision which spurred Barnet on to a 2-1 comeback victory at Underhill.
Danny Hylton gave Aldershot a first-half lead before Steve Kabba came off the bench to earn and score the 63rd-minute spot-kick, while Ricky Holmes grabbed a winner with 10 minutes to go to leave the Shots fuming.
Manager Dean Holdsworth refused to speak after the match but captain Herd, who conceded the penalty, said: "I felt like I didn't touch him (Kabba) to be honest with you, I felt like he just went down too easily.
"To come here and do a job in the first half, especially going up the hill, you felt like you were going to have the momentum going down the hill in the second.
"Unfortunately it's not the way it panned out, we just seem to get punished for every mistake we make at the minute."