A 78-year-old Philadelphia woman who repeatedly blocks self-driving delivery robots as a form of protest was arrested after allegedly refusing to let an Uber Eats machine pass.

Carolyn Marvin, a retired University of Pennsylvania communications professor, encountered the robot near the 1200 block of Filbert Street in Center City earlier this month while returning home from a flu shot appointment.

Marvin, who told CNN she has spent months deliberately obstructing the machines, stood in its path until a crowd gathered and police were called.

Officers responded to the scene after receiving a report of criminal mischief involving a robot, a Philadelphia Police Department spokesperson told The Independent.

Marvin allegedly refused repeated orders to move, prompting them to issue her a disorderly conduct citation.…