A woman has been charged after she was spotted driving around with a staircase on the roof of her vehicle.Peel police say they were called to The Queensway and Cawthra Road in Mississauga on Aug. 26 around 3:15 p.m. after several drivers called in to report the incident.According to police, the driver backed into the staircase at The Queensway and Dixie Road.Police charged the 22- year-old woman from Woodbridge with careless driving.The investigation is still ongoing.