Anamarie R. Medina, 34, of 3 Prospect St. in Easthampton was arrested at 12:47 a.m. for operating under the influence of alcohol.
Police said someone called police after witnessing Medina drunkenly pump gas at the Pride Gas Station at 375 King St. Medina had left the station by the time officers arrived, they said, but were given her plate number, which they used to find her down the street.
Medina was also arrested on a charge of having no inspection sticker.