District traffic police boss Ian Knight said the student (20) was not drink driving and had a valid licence.
This offered no reason for police to investigate further, with the carpark crash ruled a clear-cut accident.
Witness Jaimie Perry, an ECU staff member, said the driver had his right leg out the door while controlling the pedals with his left foot.
‘Maybe he couldn’t see properly so he had his head right out of the door,’ he told a news website.
‘He’s accidentally floored it and just catapulted onto the other car.
‘The curb is sloped and I think he just hit it at pace and got airborne.’
The driver suffered a leg injury and was taken to Joondalup Health Campus.
An ECU staff member and a student provided first aid to the driver until an ambulance arrived.
ECU acting Vice Chancellor Arshad Omari wished the man ‘a full and speedy recovery’.
‘As soon as we learned of the incident, ECU’s Security Operations immediately contacted emergency services,’ he said.
‘There were some minor disruptions in the car park as traffic staff cordoned off the area to remove the vehicles involved in the incident.’