The man, 62, encountered a group of teenagers at a car park at Kanahooka Park about 4.50pm, Sunday. 

Police believe the teens followed the man – on foot, and then in their own cars – before he suffered a medical episode at the wheel. 

His car rolled through a red traffic light and collided with a pole on the Princes Highway at Dapto, at the intersection of Moombara Street.

He was transported to Wollongong Hospital in a critical condition.

Lake Illawarra Police: 4232 5599