What an Idiot! Brit Puffs at the Pump

1/9/2008 4:00 PM PST BY TMZ STAFF
Has Britney no sense at all?

Having lost her Mercedes in the middle of Sunset Blvd. the night before, cameras caught Spears driving and smoking cigarettes in a black Escalade yesterday -- ashing out the window while she was sitting at a gas station. Hello McFly?!?