Looks really close no doubt, I go right up and talk to the folks, take the photo or drawing showing the place, they might really like it if you have one to Give Them, that starts a conversation and can help drop the initial tension down.
Usually if they are snubby about you asking, leave them your number and I have had folks call and say: "Hey we Lost a..." then you go help them. Just trying to be helpful. Best of luck.