After watching the final cutscenes and loading the game back up the quest still isn’t complete. I’ve tried to do different dialogue with phineas but it still leads to the cutscenes. Is this supposed to happen? I still got the achievement just the quest isn’t completing.

That's the end of the game congrats! 

Ps

Obsidian always does this with there games and somehow it always catches me off guard 

But I can’t even exit the room after that. The door you come in from is sealed off once you start fighting the robot and the other door requires 100 lock pick. I’d have to reload a save to before that.