An illegal immigrant was caught trying to sneak into the United States while crammed into a very small compartment of a Honda Civic.

Border Patrol officers near San Diego noticed that the driver, a U.S. citizen, was acting weird, so they used imaging technology to inspect the car.

Turns out the 23-year-old undocumented female was wedged under the backseat of the vehicle, near the gas tank. 

The 30-year-old driver, who was traveling with a 3-year-old in the car, was arrested and will face federal charges.

The undocumented woman will be sent back to Mexico after immigration proceedings.