In lieu of mailing the notification described in section 321.502 to the defendant in a foreign state, the plaintiff may cause the notification to be personally served in the foreign state on the defendant by any adult person not a party to the suit, by delivering the notification to the defendant or by offering to make such delivery in case the defendant refuses to accept delivery.
Iowa Code § 321.504
Referred to in §321.507, 321.511, 321.556