Neither of us can say for certain because the Scriptures do not give us a definitive answer. However, I would not be surpried if he were. He reponded positively to all the revelation he had, exhibiting a willingness to take God at His word. Recall that from God's perspective, Christ is the Lamb slain before the foundation of the world. The Father can apply the merits of and righteousness from that sacrifice to whomsoever He pleases. He is the definition of righteousness, justice, love, and mercy. I trust him to make a merciful and just decision.
To be consistent, you would have to maintain that he was saved (although nothing is said that he was), because if he wasn't saved, the notion that a man has to be regenerated before God can reach him falls by the wayside.
I agree with your assessment of the attributes of both the Father and the Son, and the decision they would make is to reach all men so every man has a choice to make and not have had that choice made by God for him in a Eternal Decree. (Rom.1, Ps.19, 1Tim.2:4, 2Pet.3:9)