I was struck in the left rear quarter panel.  The other driver's
insurance paid for the repair.  It's been about a month.  The trunk
carpet has been damp.  Turned out the spare wheel well was filling
with water.  The body and fender guy didn't put the two plugs back in
place over the two bolts on the driver's side through the trunk
floor.  Of those bolts one is loose and can't be tightened without
threat of breaking the bolt.  In the bottom of the spare wheel well
was a discarded metal bar dimensions of which are: 8.9cm long x 3.3cm
in diameter.  There are three channels: 1.8cm from either end with
clips and a center channel with a heavy C clip.

Is the car safe to drive with this fairly massive pivot of some kind
not reinstalled?

Bill