The motocross star, who is in Australia with wife Pink for her Beautiful Trauma tour, explained the fight with a woman on his Instagram with a video of himself mouthing "what the f**k".
The father of two wrote, "I just got into an argument with a woman at a gas station in Brisbane. She told me that I was putting everyone’s life in danger my using my phone at the gas pump.
"That if I had the light turned on, accidentally dropped it, the phone would light the fumes, the station would blow up, and kill all of us 😳😳.
"What the hell is wrong with people?????? You got some serious scare tactics over here lol."
Carey's followers were divided over the fight, with some agreeing with the woman's advice and others referencing the show Myth Busters which apparently proved that it was fine to use a mobile phone at a petrols station.