The 22-year-old University of Oregon student informed police it was his pet python.
Police spokeswoman Melinda McLaughlin says the nonvenomous snake was wrapped around the driver's torso. She estimates it was 4 to 6 feet long.
McLaughlin said the driver was cited Thursday night for offenses that included providing false information and driving with a suspended license, and was then released.
Officers returned his snake, which had been placed in a bag.