The two-hour thing wouldn't be so bad. I got home at 9:30 last night and huge crowds of small children (like 4-8 years old) were still being ushered around, not to mention the increasing numbers of teens. That's my other pet peeve- how old should you be when you quit trick-or-treating?
Sounds like you need to lead a neighborhood revolt. How many houses? Even if you only got two or three blocks to do something similar to what we do, you would probably get the entire neighbor to figure it out... gets the neighbors to talk too. Print up some fliers (you can get a number on one piece of paper), cut them out and hand them out a week or so before Halloween.
I found my daughter WANTED to quit trick-or-treating after her 12th birthday. She and her friends only wanted to dress up and hang out. The parents have been taking turns hosting parties since then. It usually involves a movie and snacks. Nothing too tough. It's actually pretty easy when Halloween falls on a school night!