It may have been the pace/backup car if it was an organised event , hence the camera looking backward
It was a learner vehicle just parked up on the side of the road ZEUS.
Source: http://cars.aol.co.uk/2015/06/04/video-dimwitted-cyclist-rides-into-back-of-parked-learner-drive/
Oh I seee... in that case I'd have taken his details and probably kicked off as well
Nice one GM