The ex said Meddock told her she would "pay" for speaking with police, the report states.
The woman said Meddock punched her in mouth when she tried to get out of the vehicle.
She told police she eventually jumped out of the moving car near Ludlow and Irwin avenues. She then flagged down a medic, who contacted law enforcement. Meddock also called police, and they took his statement at his home.
He said he picked her up from her father's home, and she began "acting crazy" and attempted to get out of the car. Meddock said he tried to keep her from jumping out, but he could not stop her.
But police said Meddock changed his story at least once, and his ex's injuries were consistent with her version of events. Police said Meddock threatened his ex while completing paperwork.