Prominent anti-gay protester Rev. Grant Storms was convicted Wednesday in New Orleans on charges of obscenity.

Storms is known for his bullhorn protests of the city's annual Southern Decadence festival in the French Quarter. The festival is considered one of the world's largest gay-themed events.

Last year, police arrested the 55-year-old Storms after two women reported him masturbating in the driver's seat of his van at Lafreniere Park.

According to The Times-Picayune, Storms waived his right to a jury and Judge Ross LaDart presided over the daylong trial. LaDart found Storms guilty and sentenced him to three years of probation.

In announcing the verdict, LaDart said Lafreniere Park is a public place “that was chosen by this defendant to engage in a history of masturbation.”

Storms declined to testify, but in his confession to police he insisted that he only touched himself inside his underwear and never exposed himself. He described public masturbation as “a thrill.”

Southern Decadence draws tens of thousands to New Orleans for a gay party that lasts the entire Labor Day weekend.

Storms has led marches in protest of the festival. In 2003, he organized a march in opposition of the event, which he called “nasty” and “depraved.” Storms and his followers picketed the festival with signs that read “Adam & Eve NOT Adam & Steve” and loud protests amplified with bullhorns.