Not if there was a plant on the other side....
Set it up from the direction they follow. Bin, Star picket, throw away plant.
Put the star picket just high enough out of the ground to take out their sump, when the cops come round to complain, say it was there to support the plant, see...
nothing they can do, the cops will suspect and probably have a laugh about it, but wont be able to prove a thing:2tsup: