I know this is being posted after the fact but it wasn't fully clarified by he other responses. As it's a collegiate event carry away, the GFSZ law only applies to K-12 and only on school grounds (very few schools of any size have on campus golf courses), not school activities. Utah's law used to include activities resulting in traveling GFSZ's around every field trip and sporting event. But that was fixed, and it was an aspect of the Utah law, not the federal law.
Just make sure you review Idaho CC laws before you go.
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