She is probably covered by her own carrier as the Volvo likely fit under her new policy as "a newly acquired automobile" on the DOL and was automatically covered.
I
HOPE.
You
DID file a "release of liability" with the Oregon DMV, the day you sold the car, to protect yourself from liability, in a case like this the day you sold it.
DIDN'T you

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...
1995 E 420, 170k "The Red Plum" (sold)
2015 BMW 535i xdrive awd
Stage 1 DINAN, 6k, <----364 hp
1967 Mercury Cougar, 49k
2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive

(sold)