A judge Monday found 50-year-old Diane Marcotte guilty of the misdemeanor charge of failing to provide humane care and treatment for a pet.
The charges stem from an incident in March in which officials say Marcotte drove to pick up her son from school while she was drunk.
Officers arresting Marcotte for drunken driving noted that Chico, the 5-month-old puppy who was in the car with her, had alcohol on his breath.
Marcotte said during her trial that Chihuahua's are "very hyper" and that Chico lapped up a glass of red wine he'd knocked over and that she didn't intentionally give him alcohol.
Chico is now living with a new family.