@wandereroftruth It’s in your contract that your auto policy may cover certain people in certain types of accidents when that’s the last resort for coverage. You don’t even have to agree to it.
@mlprice It’s not fraud. OP’s relative was likely covered under PIP or UMBI/UIMBI under OP’s policy which would have happened after the insurance company did a thorough investigation to determine if the relative qualified for coverage under the policy.