Sammay Blackwell said the woman came into the Chouteau convenience store where she works shortly after 10 p.m. July 8 and acted strangely before buying gas and leaving, KWTV, Oklahoma City, reported Friday.
Blackwell said the woman was still hanging around outside the store when she left for evening.
"I got in my vehicle and began to back out and looked and could tell she was staring directly at me," Blackwell said. "I could almost see the white in her eyes."
Blackwell said the woman rammed her truck and it flipped two and a half times.
Blackwell said her attacker apparently believed she was Casey Anthony, the Florida woman recently acquitted of killing her young daughter. Anthony is scheduled to be released from jail Sunday.
"She said that I was trying to hurt babies (that) I was killing babies, and she was going to stop me before it happened again," Blackwell quoted a police officer as telling her after the incident.