End of the road

[Gone in 60]

If he's under-insured, the medical costs above his limits would possibly roll over to your insurance if you have uninsured/under-insured coverage on your policy. If so, they'd make an effort to go after his assets once they take care of you, but that would be to recoup their costs. If not, you'd have to have the means, most likely through an attorney, to find out if he has assets that are collectible against. And I certainly would hope that he does.