Jarett Kelley  macing
© Facebook / Ash Sherilynn O'Brien
A screenshot shows the woman macing Jarett Kelley
A woman allegedly Maced a California couple for not wearing masks while eating at a dog park — a disturbing incident caught on videotape.

The injured pair, Ash O'Brien and hubby Jarrett Kelley, said the lady, who was wearing a black mask, ambushed them with a can of the burning substance after ripping them for not donning face coverings and eating at the Dusty Rhodes Dog Park in Ocean Beach outside San Diego on Thursday afternoon.

First she "automatically started saying stuff about us not wearing a mask when we were social distancing — there was no one near us," O'Brien told the local ABC-TV affiliate.

O'Brien said the lady also took them to task for eating at a picnic table at the park while they were there with their 3-month-old puppy, claiming it was against the rules.

"If we knew there was a no-food policy, we wouldn't have brought it into the park," O'Brien told the TV station.

The angry woman soon stalked off — only to come back a few minutes later and attack them, O'Brien said.

"She just came up without saying anything and just stuck the Mace can right in front of my face," O'Brien said. "My husband, being a good guy, walked in front of her and was like, 'Hey, calm down please don't do this' — and then she grabbed him and just starting macing him. She used the entire can on him.

"We drove to the hospital. He got treated and everything," O'Brien said — adding that her husband suffered injuries to his face while she was burned on her arms.

A woman filming the incident shouted at the attacker, "What are you doing? You cannot be serious! You just Maced them!" — as a female weeps in the background, according to footage posted by the Daily Mail.

"What's wrong with you, lady?!" added the woman who caught some of the encounter on tape.

The injured couple filed a police report afterward.

"I want her to go to jail — she assaulted my husband, and I'm angry about it," O'Brien told ABC.

San Diego cops confirmed they took a report alleging battery over the incident.