A Pennsylvania police department is searching for the thief who swiped a speed enforcement device — while officers were using it to catch speeders.

Fleetwood Police released a surveillance image of the vehicle involved in Monday’s theft in Richmond Township.

“At approximately 4:10 pm the driver of the pictured vehicle backed up to the device and put the receiver unit and battery charger/power supply in the trunk while officers were involved in traffic stops,” police said Thursday. “The driver then completed a U-turn and fled northbound on 222.”

Police were offering a reward for information about the thief and the device's whereabouts.

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The thief appeared to have his supporters among those who left comments on the department’s Facebook page.

“Thank you for your service, mystery driver in white car,” wrote one person.

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Said another, "Lol, SOMEONE has to serve and protect! Thanks white car driver."