As for locals, I'm a day tripper.
I've been getting up for weeks now between 2:30 and 3:30AM to drive to the park.
Early in the AM I've seen lots of cars parked along US2 on the way.
The other morning I saw around 8-10 vehicles of various kinds parked by the spring in Bad Rock Canyon(on US2)--including one that had two tents set up there.
I've also seen quite a few cars, trucks, campers, and large RV's parked along the GTTS road at 4:00AM+-
The Park Service hasn't been enforcing the "No overnight Stay" rule that I can tell.
I haven't seen the first LEO in the early mornings I've been driving out there.
Dozens of campers have taken over the gravel bars at Blankenship bridge and many places in the surrounding area National Forests.
The motels on US2 between Kalispell and West Glacier look like they're doing quite well judged by the number of cars in their lots..
pete
PS
I forgot to mention that upon my early arrivals at Logan Pass, I've seen a number of vehicles whose occupants had pretty obviously spent the night in the parking lot. I always thought that was a "no-no"?
This past Saturday I arrived around 0500 and parked next to a Park Service LEO's SUV. No sign of the LEO though.