***The soldiers of Israel refuse to kill Jonathan after King Saul's command: I Samuel 14:24-30 and Samuel 14:43-45***
I think it self-evidently obvious that to kill someone for eating honey in ignorance would be a violation of God's Law, but that is just me. Ergo, it would against God's express command to not murder to obey Saul.
***Ester presents herself before the King: Ester 4:11 and 5:1-2***
Ok, so Ester presents herself before the king. I think the very fact that the king extended his scepter indicated that he wasn't opposed to her being there without his calling for her. He even offered her half his kingdom. This doesn't even seem to me to be an example of any kind of civil disobedience.
15 Then Esther sent this reply to Mordecai: 16 "Go, gather together all the Jews who are in Susa, and fast for me. Do not eat or drink for three days, night or day. I and my maids will fast as you do. When this is done, I will go to the king, even though it is against the law. And if I perish, I perish."
King Xerxes had already deposed Queen Vashti for something much more trivial, not showing her beauty. By the way another act of civil disobedience.