Oklahoma running back Joe Mixon didn't just rip up a parking ticket -- he threw it at the campus parking attendant's face ... this according to the police report obtained by TMZ Sports.
In other words ... assault with a paper weapon?
Mixon -- one of the top running backs in the country -- already admitted to the Nov. 1st incident on the OU campus and said he regretted tearing up the parking ticket in front of the attendant.
But according to the police report filed with the University of Oklahoma PD -- the accuser told cops Mixon "threw a torn up parking citation, which allegedly struck the victim in the face."
The university suspended Mixon for 1 game over the incident.
However, the police investigation into disorderly conduct is still ongoing.