The woman said there was a plainclothes police car in traffic behind her which "must have heard about it on the radio or something" and activated its lights.
"Everybody pulled over for him and he went up into the intersection and turned and stopped so no one could get through. He moved just in time [to allow the pursuit through].
A police spokeswoman said at 8.42am a report of police pursuing a vehicle was logged but the pursuit was abandoned after a short time due to the traffic build up in the vicinity of SH 2 Domain Rd.
No further information about when and where the pursuit began was available.