Driver , 30 , allegedly crashed his car on Perth 's the Mitchell Freeway on Friday . He was spotted walking through traffic erratically after crashing into pole . Number of people stopped to help including construction worker Chad . As they tried to help , driver allegedly carjacked Chad 's white ute . Police have since arrested the driver and retrieved the stolen ute .
Driver , 30 , allegedly crashed his car on Perth 's Mitchell Freeway on Friday . He was spotted walking through traffic erratically after crashing into pole . Number of people stopped to help including construction worker Chad . As they tried to help , driver allegedly carjacked Chad 's white ute . Police have since arrested the driver and retrieved the stolen ute .