A 19-year-old Arizona mother who police say left her 5-week-old baby strapped in a car seat atop her car roof and drove off is under arrest on child abuse and aggravated DUI charges. The child, found in the middle of the road, was “perfectly OK,” said Officer James Holmes, Phoenix police spokesman. The car seat was damaged, Holmes said. The baby is in the custody of Arizona Child Protective Services, officials said. Police got calls from an area in northwest Phoenix that a baby was in a car seat in the middle of a road. Phoenix Fire Department officials found the baby and took him to a local hospital. Holmes said the mother, Catalina Clouser, had apparently been smoking marijuana the previous night at a nearby park with her boyfriend. About 11 pm they left the park to buy some beer, and the boyfriend was arrested on aggravated DUI charges while on the way. An upset Clouser then reportedly went to a friend’s house, where police say she admitted smoking more marijuana before leaving the house. Before driving away, Clouser apparently forgot that she had left her child sitting on the roof of her car. Clouser realised the baby was missing when she reached home, and started calling friends to look for him and retrace her route. The friends ran into the officers investigating the case and when Clouser arrived, she was arrested.