Gas pumps near empty in Sao Paulo due to truckers strike March 7, 2012 -- Updated 1202 GMT (2002 HKT) Truckers are protesting new driving restrictions in Sao Paulo They were ordered back to work, but gas stations are still lacking Sao Paulo, Brazil (CNN) -- Gas pumps in Sao Paulo, Brazil's biggest city and financial capital, were running dry on Wednesday due to a truckers strike that began two days ago. A state court ruled late Tuesday that strikers must go back to work, but according to radio stations that monitor traffic, many gas stations were still lacking on Wednesday. Truckers declared a strike against new driving restrictions in the city of Sao Paulo that prevent them from using many central streets and arteries during peak hours. In Sao Paulo, a city of 11 million people and 7 million vehicles, traffic congestion is notorious. Tuesday night, dozens of workers lounged around the empty gas stations. The main truckers' union said it had advised its members of the court's decision and the threat of stiff fines.