Replacing over 40yr old hedges
Loosing such wonderful old plants sucks, and due to someone else's A-holery! Tragedy.
If the drunk is paying, then you really ought to get some estimates for removal from local landscaper. Even if you just include the cost of removal to the insurance claim and do it yourself. I'm assuming his insurance is paying - but you can also add it to your victim's restitution amount, or whatever. You are entitled to it as part of your damages.
Also, I'd include the cost of a fine bottle of Scotch to properly 'Wake' your fallen shrubbery. My sympathies.
If I could only remember to THINK about what I was doing before I did it.