My son really wasn't in an accident, but when he was driving his pap's truck, he hit the bumper of a car parked out back. Damage was minimal and had my son not contacted the owner, it was so small, it wouldn't have been noticed right away, if at all. There was a tiny crack, but you couldn't see it unless you were right on top of it pushing on the bumper to show the tiniest separation.
Her insurance company was Geico. Our company is, State Farm and FIL's insurance carrier is All State.
State Farm said it wasn't our vehicle, it wasn't their responsibility and said to contact FIL's carrier.
We offered to pay all costs ourselves to keep from turning it on on FIL's policy, but Geico told the girl to not accept this type of payment and to make it go thru insurance (for everyone's protection). It didn't make sense to me, but that's what they tell their customers and I'm pretty sure their customers follow their advice.
All State ended up footing the entire bill (though it really wasn't much). FIL was angry and still is at my son (he had no damage), but what can you do?
We were told that we'd have to pay the deductible, but in all honesty, we never paid anything, so I'm not sure how that all played out. The girl did initially try to say my son did some damage on the back quarter panel (she had a scratch there), but when she realized we'd fight that, she immediately withdrew any claim to her prior damages. Had it been out of pocket, we might have even helped her getting that repaired since the paint would have had to be purchased anyway, but when we were forced to turn it in, our attitude changed a lot and we were only willing to fix the damage my son caused.