Fresco, you're making way more of this than you have to.
God and the Bible and all that is a Fairy Tale to us atheists. Never mind what lingers or doesn't linger... the fact is, we ALL go to weddings and funerals and such for the PEOPLE involved. Doesn't change anything for you, does it? It's still a fairy tale, or myth, or saga, or whatever. I go out of respect. I don't bow my head or pray, but if I'm with a believer (like my aged MIL), I will kneel at the appropriate time(s) for HER. It's just a sign of respect to do that, isn't it? But do I "believe"? No! And she knows it, but it's never discussed.
And I have no doubts or lingering questions or anything. As I'm sure you don't. It'd be like going to Norway and being asked to pray to the Norse God of War or something.