He was actually fined £10,000 for cutting down the tree, the rest was costs and pay back under the proceeds of crime.

However the driver does seem to have got off extremely lightly, I'm sure that just failing a breathalyser test and then found to be over the limit, usually gets a longer than 6 months ban

Driving/Attempting to Drive with excess alcohol (DR10)

Penalty - Fine - up to Level 5 (£5,000) and/or up to 6 months imprisonment

Mandatory disqualification for at least 12 months for first offence

http://www.lawontheweb.co.uk/Road_Traffic_Law/Drink_Driving_Law