Thanks for sharing your experience, jwfacts, with us. I am glad you found the strength to attend your father's funeral but outraged at the treatment you received at the hands of most of the Witnesses there. Here was an opportunity to display genuine Christianity and these people failed completely. Kudos to those who did put their humanity ahead of their religion, though.
This episode has made me all the more determined never to enter a Kingdom Hall again for as long as I live. I would have only two reasons to do so in any case. An elderly aunt, who got baptized in 1956, won't be with us for too many more years; and the mother of a close friend who is also in her eighties, are the only reasons I would ever have for considering going to the Hall and attending their funerals/memorial services. But considering what happened to you, I am certain I would face the same if not harsher treatment. I will try to console my family and friends when the occasion arises, but I see now that going to the Hall to express sympathy and support won't do any good.
Your father was a good man and had a real love for others. I wonder what he would have felt had he known how you were treated. I'm sure he would have been far from happy about that. At least you and he had made peace over religious questions and had a good relationship. You have many good memories that will console and comfort you in the years ahead. I'm sorry that your mother has not yet found the wisdom your father had. Perhaps she will in time.