A naked man who carjacked a Federal Express delivery truck--but then fled the vehicle when he could not figure out how to drive it--has been arrested, according to California police.

Investigators allege that Albert Luna, 19, got into the truck around 7 PM Saturday as the driver was removing a package from the rear of the vehicle, which was parked in front of a residence in the city of Coachella.

Luna demanded the truck’s keys, which were turned over by the driver (who, cops report, “ran to a nearby residence and reported the incident”).

While Luna succeeded in starting the truck, the accused carjacker’s getaway was not smooth. He “did not know how to operate the vehicle and fled the area on foot, abandoning the victim's vehicle,” according to police.

Based on information provided by the Fed Ex driver, the suspect was described as “a Hispanic male adult, 18-20 years, thin build, short hair, and not wearing any clothes.”

Luna, a Coachella resident, was arrested Sunday and charged with carjacking. Pictured above, he is being held in the Riverside County jail on the felony count.

It is unclear why Luna was naked when he sought to boost the Fed Ex truck. Additionally, it is unknown whether his lack of clothing was a drug-related condition.