Yeah, Been There, Done That! I was very confused. And now I have it from the other side of the situation. I'm also the mom of an Aspie, and we go around on this sort of thing all the time. Because I know how it feels to be blindsided, I've taken great pains to make sure expectations are clear.
For example we have house rules - one of which is that my daughter, while unemployed, is to keep the house neat and tolerably clean. She knows that constitutes, as we had the house on the market for sale a few years ago and I use a less strict version of that as an example. It means that when the trash bag is full, it is taken out. At the time it becomes full. When dishes are dirty, they are to be put in the dishwasher. At the time they are finished being used. When the dishwasher is full, it is to be turned on and the dishes washed. When the dishwasher is done, the dishes are to be taken out and put in the cupboards. As in, as soon as the dishes are dry.
We go through the same thing every week - "You didn't tell me to...." when we've had the discussion every week. I end up saying "remember how the house was when it was for sale? Did you keep your craft supplies spread out all over the living room rug for days on end at that time? No? Then don't do it now. Put them away when not in use. I should not have, at this point, to tell her to take care of chores. The basic, overall, house rules that have been in place since she was a toddler are: If she notices something is dirty, clean it. If she takes it out, put it away again. If it's broken, fix it if possible. Don't leave clothing laying all over the house, etc..... When she was younger I tried to get compliance with all that - with charts put up on the fridge and rewards for positive effort.
They didn't work, either.
She tells me that she just doesn't notice that things need to be done. Which is something I ~do~ realize. The end result of the project is that she LEARNS to notice, and then to take the appropriate action. That it becomes a habit that will serve her when I'm dead and gone. Learning to realize and act on the things that are not readily apparent is one of the hardest things to do. In our current situation, it's housework and being aware of surroundings. We're also working on the general cultural expectations, and have been since she was very young - the "why didn't you" or "why in the world did you" situations. Since they are not intuitive, they have to be studied and learned. You really have to be able to see them coming and know how to deal with them.
It's a pain in the backside, and it's a shame that that's the way the world runs, but it IS the way the world runs. Soooo, you'll get farther if you start watching people, behaviors, etc., and learning what's expected of you. Once you know that, you have the option to NOT do it if you choose, but it'll be a choice at that point.
Good luck.