There used to be a rule in the AAR standard rules that "any object waved violently by any person standing on or near the tracks is a signal to stop," and I think most railroads incorporated it in their own rulebooks. However, that doesn't alter the fact that the film crew was denied permission to film and ignored the denial. They had no business to be there, period. As to flares, anyone placing the flares would need to know how far away to place them, and anyone having enough knowledge for that would know better than to participate in such dangerous foolishness in the first place, as did the very sensible individual who refused to go along with it.
patcat88 wrote: The film crew also could've called CSX and lied that a vehicle was stuck on the tracks on private property, but would CSX automatically call the cops to goto the scene if they got that phone call and then the film crew will get locked up by the local police?The emergency contact number for CSX 800-232-0144 is answered by CSX's Police Service Center, who will notify the local police of the happening concurrent with notifying the Train Dispatcher for the territory involved for any suspected interference of safe operation of trains.