He picked the wrong guy to mess with.

A drunken Queens man went berserk after he couldn’t get an ATM to work at a gas station early yesterday and was killed when he turned his rage to the attendant — a former competitive kickboxer.

“I feel bad. I didn’t mean for the guy to die. He called me a Taliban,” said Jasjeet Walia, who was released from custody last night after being grilled by cops all day.

“I feel like throwing up. I’m having a bad headache,” said Walia, an amateur kickboxer for seven years in his native Mumbai.

Cops identified the dead man as Oscar Arzeno, 28, of Franklin Avenue in Flushing.

Arzeno had just collected a bundle of cash from a police-brutality suit against the NYPD.

Surveillance video from the Long Island City Gulf station on Van Dam Street shows Arzeno sucker punching Walia in the eye after a heated argument.

Walia throws a combination of punches before delivering a roundhouse kick to the head.

The fight spills out into the street, where Walia knocks Arzeno to the ground and gets him in a chokehold.

“He started kicking the machine out of anger. He was saying, ‘Your gas station sucks. You suck!’ ” recalled Walia’s brother, Rajeet, who also works at the station.

“My brother is not a badass. He is just a regular guy. He doesn’t pick a fight. He is a soft-spoken guy. He did kickboxing in Mumbai. He has competed all over India.”

Arzeno was pronounced dead at Elmhurst Hospital.

At his Franklin Avenue home, Arzeno’s brother was furious.

“He’s an idiot!” he said in tears. “How could he start a fight?”

Marilyn Machado, 26, the mother of Arzeno’s first child, said he had just collected $250,000 from a 2006 brutality suit and was planning to move to Florida.

The suit accused cops of punching him and kneeling on his chest during an arrest.