"Thank you, Mr. Mayor," Oliver replied, "But let's keep this simple, shall we? Green Arrow, or just plain Mr. Queen is fine." Mr. Arrow just struck him as odd. You wouldn't say 'Mr. Batman,' would you? Then again, maybe if you were the mayor, you would.
Whatever the case, he wasn't about to storm out of the meeting just because the protocol for dealing with masked crusaders was still being written. "I do appreciate your taking the time out of your busy schedule to meet with me."