Bouhanni won the sprint in the rain but was relegated to 27th place for deviating from his line during the sprint. Victory was awarded to Caleb Ewan (Orica-Bike Exchange).
Bouhanni was in the lead coming into the final 50 metres before appearing to swerve into Ewan's sprinting line as the Australian was coming alongside.
Bouhanni suggested that due to previous incidents, the UCI commissaires were ready to relegate him for any small reason.
"Me, when I move an ear, they are just waiting to punish me for it," Bouhanni said according to L'Equipe. He added, "I believe I won."
Cofidis DS Alain Deloeuil also went on the record to defend Bouhanni's sprint, saying that the rider's deviation wasn't intentional.
"He had his head looking at the handlebar, the move was involuntary," Deloeuil claimed. "We should let him do his sport and do his job. Some commit more serious offences and are left alone. But with Nacer, they break down every move, and they don't give him any gifts."
Bouhanni has a bit of history of getting in the way of Australian sprinters, being relegated again in March when he nearly pushed Michael Matthews into the barrier on the second stage of Paris-Nice.
He then managed to avoid punishment when winning the opening stage of the Dauphine after trying to headbutt Alexander Kristoff off his Katusha team-mate's wheel in the final kilometres. In that case he lost the fight for position, but he still had the legs in the sprint to finish off with a win.
Bouhanni used to be a junior boxer and saluted that stage win with a tribute to the recently deceased Muhammed Ali, throwing a few punches as he crossed the line.
It was fitting, with the timing, but also as a reference to his own pugilistic style on and off the bike.
Then on the eve on the French national championships, Bouhanni was staying in a hotel with his brother, Rayane, who also races for Cofidis when he got in a fight with noisy patrons.
He suffered injuries to his hand after punching one of the drunk patrons and eventually required surgery on the hand which forced him out of the Cofidis team for the Tour de France.
This probably won't be the final incident the fiery Frenchman is involved in and it does seem to make him a rider that judges and officials keep a tight watch on.