My teachers (with exceptions) are stubborn and unwilling to make such deals. It's also not only the after school assignments that I'm upset about, but the fact that I spent 8+ hours of my day in school with no ability to get any work done.
I was in a very similar position as you and looking back what got me those breaks were the teachers that liked me, that liked what they saw in me and who wanted to support me.
Everything I got, I was granted. Just like in real life.
I may not have the "best" social skills, but I will say many of the teachers do like me.
they want him to conform to a system that was never designed for him