Replace the tyre..
Struts can take a lot of hard knocks and make a frightening noise when they bottom out.
Take lots of pix and send in a bill.
You never know your luck. Nothing to loose.
Write into the letter re it could cause a fatal accident etc
Tell them how your car veered onto the wrong side of the road when it hit it (if it did)
Send a copy to local paper as well.
Keep it to the point.