I have been in this situation on the JMT.
Trying to break the unsupported record, I was going North Bound coming down the Golden Staircase. It was about 1,500 feet below the top where it flattens out a little and has spongy wet moss over about a 1/4 mile area.
There was someone in a tent pitched near the edge and I thought, there is no freaking way there will be any bears out here. It took a few different spots of finding a place to sleep without getting wet, but I had not slept since the start.
I plopped down in my bivy for a 1 1/2 hour nap and used my 15-liter pack (filled with about 9 pounds of food) as a pillow.
I was asleep within 5 minutes and within 10 minutes I was woken by a bear sniffing my face.
I can easily get away without a canister on the JMT. I just push strait thou the areas required to have a canister without sleep.
This means getting some sleep before the fence line 2 miles south of Vidette and pushing through to Mather and only sleeping at Reds or Tuolumne while in Yosemite.
All I can say is that I absolutely hang now.
You work out prior to the trip where you want to sleep in areas you can hang.
I'm sorry but a 5-hour nap is not a nap when you are pushing, it's a good nights sleep.
Why would it be so hard to just keep going when you are ready to go to sleep until you find a place to hang?
You can hang your pack on just about anything with the tiny, lightweight pack you'll have.
If every bear knows it can get you food, they will all become more aggressive in getting it.
This is why all the rules are there in the first place.
With bad practice, there will have to be a need for even more strict rules.
This is something no one wants.
Be a part of the solution, not the problem.