I live in a rural/suburban central california town, and there's a guy here who has inexpensively repaired many carbon frames using the patch method, without even the need for much bike disassembly.
Colorado must have a few such repair facilities, ask around.

I take it that the crashed bike's owner is not a Pro or even elite rider, so the weight penalty will not matter.

The consensus over the years is that most carbon repairs are easily stronger than the structure was before repair, owing to the fact that a lot of stiffness is added local to the damaged area.

So, for about the cost of just preparing the frame for shipment and later reassembling it, you could have the structure repaired in-situ and be done with it.

I've known concussion victims to seemingly be more accident-prone for a while, and it's especially bad when it results in re-injury. A lot of bike racers I've known discovered this the hard way.