Sorry to hear about what happened mate, as long as your ok thats ALL that matters. This is the main reason why we pay stupid insurance companies premiums in the first place. Especially in this weather it would of been dangerous to put a chase on, in dry conditions yeah over 10mph the doors lock up and your gone but loosing the chase is a bit of a tricky and your putting your own life at risk along with many other innocent drivers on the road at the time - verdict: not worth it!
hope they all rot in hell. pr!cks.