Probably of limited impact in Glacier, but I thought this might be of interest based on Pete's run-in with a motorized mono-board while hiking:
https://abcnews.go.com/Politics/interio ... d=65293209
Here's the memo itself:
https://www.nps.gov/subjects/policy/upload/PM_19-01.pdf
The policy isn't up for public comment, but Park Superintendants do have some say in how it's implemented - if you have strong feelings or thoughts on implementation, it might be worth an email.