I don't think there is a 10th amendment violation or a question of federal authority. States can't be compelled to perform federal law enforcement because of the 10th amendment. States are accordingly allowed to prevent their own law enforcement from performing federal law enforcement. If state law enforcement aids the feds anyway, then they are just breaking state law.

A 10th amendment violation would be if the feds require the state to perform federal law enforcement.

Federal authority is relevant if they e.g. raided state law enforcement offices to take the data without consent, but in this case they are just given the data by state officers.