Hespelt is being held in custody in San Francisco County Jail. ABC7 News has learned that he has a felony warrant out of Washington State on drug charges.
Officers say they recognized the suspect because of his distinct handlebar mustache.
Hespelt was riding his bicycle Saturday night outside AT&T Park during a Billy Joel concert when the officers identified him. He was arrested without incident.
The violent YouTube video posted by another bicyclist has gone viral. It was during Critical Mass in late August when a group of bicyclists rode on the wrong side of the road in the Marina District.
The cyclists moved into opposing traffic about 20 seconds into the video. One of them blocked a Zipcar and stared the driver down. Next, you see the cyclists swarm around the car as the vehicle inched closer and appeared to hit a bike.
Tempers flared and bicyclists yelled at the female driver.
As the car tried to slowly pass by the group, you see a cyclist swing his U-lock, striking the car several times, finally smashing the side window.
The 39-year-old suspect works at Macy's and is said to be active in his union.
His roommate who did not want to be identified told ABC7 News said she was shocked to hear about his arrest.
"I've always known him to have a lot of integrity and respect," she said. "I can't imagine he would go so far to be violent."
Roommate of bicyclist charged with hitting car with bike chain during critical mass shocked by arrest. Says he's not violent.— Vic Lee (@vicleeabc7) September 7, 2015
Hespelt lives in a three-unit apartment on Howard Street. Other tenants told us they too were surprised.
"He's a very mild mannered and nice guy to live around," said neighbor Steve Keith. "
Fellow neighbor John Chard added, "He's a good neighbor and I'm really shocked that would be him."
Investigators interviewed the female victim late Monday.
ABC7 News has learned that the female victim met with investigators on Monday to tell them what happened and say that she got a good look at the suspect. Officials say she later identified him through a photo spread.
ABC7news has learned female driver has ID'ed man arrested in critical mass incident as one who struck her car with the bike U lock.— Vic Lee (@vicleeabc7) September 8, 2015
Although an arrest has been made, anyone with additional information or video is encouraged to contact the SFPD Anonymous Tip Line at (415) 575-4444.
Watch the full video on YouTube (Warning: Adult language).