My dad is driving me INSANE during paternity leave

He keeps coming over unannounced "to help" but really just holds the baby while I try to figure out laundry and bottle sterilizing. Then he gives me unsolicited advice about everything - how I'm holding her wrong, the room is too cold, we shouldn't swaddle like that. My wife thinks I'm being ungrateful but this is supposed to be our bonding time, not performance review time. How do I tell my dad to back off without being a jerk about it?