Don't think so. Accordingly to Chamberlain himself, no CSA officer, including Lee, was required to surrender his private property sidearms.
http://www.civilwar.org/education/history/primarysources/the-last-salute-of-the-army.html
You are correct. The terms of surrender allowed all Confederate officers to retain their personal side arms. General Lee tendered his sword to General Grant at the surrender meeting. General Grant declined to accept Lee’s sword.
You are correct. Forgive my waxing poetic. I did not look it up.
You are correct. Forgive my waxing poetic. I did not look it up.