CCTV shows a woman dressed in shorts and a t-shirt shoving pieces of paper into the boot of a Honda and setting it on fire .
As the fire rages, the woman casually walks away.
But police believe she got the wrong car - as the owner of the Honda, Thomas Jennings, said he has no idea who the woman is.
Jennings's roommate was the first to spot the vehicle on fire and alerted his pal.
The pair then rushed out with pots of water in an attempt to put out the fire, but Jennings told ABC Action News it was "too much." The woman was also spotted on separate CCTV footage earlier that day looking into another vehicle.
Carmen Chamblee, 19, was arrested Saturday morning near Clearwater in Florida and charged with second-degree arson.
Chamblee told police she believed the vehicle belonged to her ex boyfriend.
She was scheduled to appear in front of a judge.