Let me weave you the story of “how I completely investigated both the hall just before the board walk,and the board walk of any and all items that didn’t require my stealing for half an hour, and after visiting aforementioned hall to try and pick the safe and was unable to so after stepping out of the hall I accidentally launched a flock of crows after painstakingly avoiding any confrontation into the aforementioned board walk and could only watch in silent horror helplessly for half a minute as the flock flew away from Booker’s hand into the distance and over the horizon line where I couldn’t see them anymore but I could hear the pained screams of the npcs being attacked and the my nightmare noise that was the battle sequence music commenced and that was when I knew I fucked up so.hard.”
To sum it all up, I found out the hard way that vigors will auto lock on any nearby npc, no mater how far away they are and even if you don’t aim in their general direction.