Dude, if you don't want to be part of the religion anymore just ignore them. :/ Meeting with two elders is a bad idea tho because, as has been stated, once you give them the middle finger, you WILL be df'd. If you still want to have contact with any other people in that group, don't meet with them. If they have nothing 'on you' they aren't in a position to make the announcement that severs your ties to any friends you may have that are still stuck in the lie.
I wouldn't meet with them even if I did not have 'friends' in the group; it just feeds into their power trip and validates their authority over you to others. :/