We actually tried to move them before the shooting using my buddy’s SUV(driving and honking), but they would not budge from the area.
Maybe they’re accustomed to vehicles. In South Park. If we get within about 50 yards on foot, they start moving (Angus, black whiteface, occasional longhorn,...). ...different environment for them down there, I guess. Some breeds tend to be more sluggish, too (e.g., Hereford).