So, the first time we got one, it was given to us by a CM; however, we’ve since asked (very nicely) at Monsters and been given one a few times, CMs cheerful and not acting like we’re entitled or anything for asking. Also we’ve been told they’re not using them sometimes. My daughter’s the one who remembers/asks, not sure if it makes a difference that it’s a kid.
Never tried at TSMM and didn’t know about Incredicoaster, but we pretty much only go back there if we have a FP.