Thoeretically, this parking lot is not supposed to use overnight. Having said that if someone checks your car or snow plower comes, you may (or may not) have to relocate your car in the parking lot... There are $25 mazama lodge you can use instead of sleeping in the car...
No. There are signs for no overnight parking.
Not that I'm aware of and they do have people up there driving through checking for safety
As long as you got your snow permit... And you don't appear like your stuck or anything... They will most likely leave you alone.
You need a sno-park permit and may have to relocate if the plows come through
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