Now, authorities are hoping surveillance video of the suspect will lead to his capture.
The man walked up to the window in the Pay-O-Matic around 1:45 a.m. on Christmas Eve.
Investigators say the man spilled a cup of flammable liquid under the window and demanded money while holding a lighter.
The clerk gave the man a bag of cash, and the suspect then fled the scene.
The suspect is described as being in his 40s, standing about 5-foot-9 and weighing around 150 pounds.
Anyone with information is asked to call Crime Stoppers at (800) 577-TIPS (8477).
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