Stone Wall- needs fixing

A couple of weekends ago, a car ran off the road and into the stone post at the corner of our front yard.  Luckily, no one was hurt.  The only injury was to the stone post, and two little bushes that were ripped out by the car...

Insurance is paying for repairs to the post & stone wall.  But it's one more thing to add to the list of things to do!  We've gotten a few estimates and all of the masons said they need to wait until the spring to complete the work.

We may take this opportunity to extend the wall down the side a little (just a couple of feet), so that it makes a nicer flower bed for the corner.  The masons said that big pile of rocks in the backyard will match the rest of the wall perfectly (we've already used some of them for the backyard flower bed).  But first we want to check with the town that we don't need additional permits/approval to extend it.