The caller told police the girl was punched and then stormed off. She was later found in the bathroom of the restaurant.
"She was bleeding pretty bad from the mouth because she got punched," he said.
The employee also said he did not see the man who hit the woman but that he left the restaurant before the call was made.
"So the person who assaulted her is gone?" the dispatcher asked.
"He ran off. I don't know where he went," the caller responded.He told the 911 operator that she was conscious but thought she was "reasonably intoxicated". On Monday, Mixon's attorney, Kevin Finlay released a statement about the incident, saying Mixon was defending himself against verbal and physical attacks from the woman and that "Joe has done nothing wrong". Click here to read the rest of the statement.
Days after the alleged assault, it's sparking debate on campus.
"Regardless if she came after him or not you don't ever punch a girl," said Chelsea Cannedy.
"I can't believe it and I don't want to believe it so I hope it's not true," said Joel Quinones.
Mixon, called by some the next Adrian Peterson, made a splash for fans across the state when he committed to OU.
But some are questioning if special treatment could come into play in this case.
"We support the program but were always concerned about the message we send," said OU mom Flo Taylor, "he should be held responsible for his actions same as any other student if it had occurred."
Norman Police interviewed Mixon and his attorney Monday but officers told FOX 25 that if they arrest him it won't happen soon. Officers plan to wrap their investigation next week and send their findings to the D.A. who will then determine whether or not to file charges against Mixon, Molitor or both.