I didn't like that last episode of breaking bad. Huell acting so stupid, walt straight up confessing over the phone, and the sloppy ending. Sure, the stakes are high, but it really feels like they're dropping the ball quality wise.

I guess it sort of was believable for walt to confess over the phone. He had no reason to believe Jesse was with the police. To him, jesse is just a child. And the fact that the call was ongoing like that, every second his precious money could be burned, probably put too much pressure on him to think about the absurdity of Jesse getting his GPS coordinates.