I was having Ignis drive me to my next quest destination when he suddenly stopped to let about 10 beasts run across the road and said "It seems we've reached a creature crossing," to which, Prompto asked "Where do you think they're going?" Gladiolus replied "Why don't we follow them and find out?" In my 56 hours of playtime, this is the first time I'd seen something like this, so it struck me as odd.
I ultimately chose not to bother following them, but should I have? Would I have found some valuable item or weapon if I'd chosen to follow the herd or was this just added flavor to spice up my drive?