I’m a day late and a dollar short to this discussion. I won’t answer yes, or no to the question posed by this thread, I will say that the Rav of my shul, when he passes my wife in the street, says good morning, afternoon or whatever is appropriate at that time, and if she sees him first she extends the gretting first. When I see the rebbetzin or vice versa we do the same.
Also, to the wolf who chastised himself for inquiring about the welfare of his wife and daughters, may I direct you towards the sfas emes on the mishna in avos (I don’t know if this is a stand alone perush on avos, or it is mentioned in another sefer of his, I’m sure searching the bar ilan CD or whatever these digital otzer hasfarim are called will find you the source) “al tarbeh sicha im haisha” where he explains the difference between the hebrew words sicha and dibbur.