Buffalo police tell local media the woman got into the ambulance at the Erie County Medical Center and took off at about 6:30 a.m. Sunday.
They say she was chased by medical center police and narrowly missed pedestrians and other vehicles as she sped through intersections, lost control and hit a parking lot wall.
Authorities say 37-year-old Heather Sullivan, a patient at the hospital, is being held Monday at the Erie County jail. She’s facing reckless endangerment, grand larceny, criminal possession of a stolen vehicle and other charges.
Jail officials couldn’t be reached to determine if she has a lawyer.