Deputies in West Palm Beach, Florida, pulled over Brandy Lerma after another motorist reported a car swerving down the road with a kid in the back unrestrained.
Police arrested Lerma, 31, and said they could smell booze on her breath.
She reportedly told officers she had taken prescription drugs as well as booze – which might explain her wide-eyed mugshot.
Lerma now faces charges of child abuse and driving under the influence.
She was released on bail to appear in court next month.