No one is hurt, no damage to the vehicle. Thanks for the concerm folks

Some key points from reading through the thread
The move was a horrendous one with no considoratin for others.Dad being 25 years in Traffic Police probably saved this from being serious. He was doing in excess of 60 on a 70mph. So there is this drivers first problem - wheres his restrictor.
Secondly my old man was actually FORCED off the road. Luckily the central reservation was a wide one with no lip or he would have collided with barrier or mounted a kerb - who knows what next....
Thirdly the guy carried on regardless speeding and weaving in and out the traffic in excess of the speed on a notorious road, in the dark and in the heavy rain we had. An absolute lunatic!!
So sorry.... this guys is condemed and whilst i appreciate it may spoil his christmas i really dont give a dam, frankly he nearly wasted mine my wifes and my sons

For my dad to call 999 tells me enough as to how serious this is. As an ex cop he wouldnt do this on a whim and he does not panic.
Ive followed the proper process to report him internally - its now up to his superiors to deal with. My hunch is that our policy on weekly paid, contracted staff is he will be released as we have no contractual obligations ( i use that term loosley) that is frankly his problem - we all have to from time to time face the consequences of our actions. Lets face it had a collision occured at that speed being sacked would have been the least of his problems - he would be facing jail.
However carless and reckless driving happens in trucks, in omegas

by men, by women and even by police cars so guys lets not stereotype anyone APART from bad/ dangerous drivers. there are good considorate truck drivers out there.
However this guy consistantly abused his power - oh and lets be honest on the face of Tuesdays weather would anyone assume he had never done this before?