Why even use those? All you have to do is just keep walking really, unless he's right on top of you. Literally don't stop unless he's about to drop out of a vent near you or running straight at you. Don't even try to go to where the group of humans are. Just go straight into the room with the sleeping androids and you'll be safe. Then, all you have to do is walk all the way to where it tells you, but stay out of the way of the vents.