Siphosethu Ngomane shared a recording of the confrontation on Twitter, catching the attention of Gauteng community safety MEC Faith Mazibuko.
The minute-long clip started with the two exchanging words over whether Ngomane, whose vehicle was hit from behind, had a driving licence.
“I wonder if you've got a f****n licence,” is shouted at Ngomane.
“Do you want to see it,” replied Ngomane.
“Yes, I want to see it, f****n stupid b***h,” came the reply.
The woman, seen pointing her phone at Ngomane, then approached and Ngomane's phone was dislodged from her hand.
The woman pointed a finger and fist at Ngomane. A voice can be heard threatening to “f**k you up” and using the k-word.
Captain Mavela Masondo said the incident happened on Golf Club Terrace Street in Florida on May 4.