"I was so shocked — I thought it was a joke and that there must be a hidden camera," the driver said after police in the town of O Carballiño explained why she had been fined.
"I couldn't believe it. I keep asking myself if they didn't have more important things to do” said the woman who was hit with the penalty after being pulled over on Tuesday.
Officers on the scene justified the fine by saying the kiss had restricted the woman’s ability to drive, but she told regional daily La Voz de Galicia this was not the case.
She told the newspaper her boyfriend had kissed her "in the way you would kiss your mother, but I didn't turn my face or my body. I didn't do anything strange. He just leaned over and gave me a kiss".
When the driver realized that police were determined to implement the fine, she asked them to specify the reasons in writing.
They responded by noting she had been "engaging in affectionate behaviour with" her passenger.
The woman now plans to appeal the fine.