Britney Spears Smokes Cigarette at Gas Station After DUI Arrest

Britney Spears is smoking … we’re not talking about her looks, we mean she’s sucking on cigarettes in a dangerous locale — the gas station!

Photogs caught the Britney Spears ”Circus” as it came to the local business … with her driver pulling her Mercedes up to the pump.

While this dude hops out to fill her up, Britney ashes her cigarette out the window … in full view of a “No Smoking” sign.

Of course, Spears isn’t driving herself because she was booked for DUI last month. CHP told us she was arrested for “driving under the influence of a combination of drugs and alcohol.”

She’s most kept a low profile in the weeks since — sticking to her home in the first few days after the arrest and rebuilding her relationship with her kids.