Your neighbor sounds a lot like mine! ;) Her kids are available to play outside with mine, if they can use my son's toys. Or, they can come inside if they can play with his electronic items. But, they can't use their toys nor is he invited in their house. We've lived here 8 years. Granted, I don't see her have any kids in her house, but I finally had to say "Sorry, guys, can't come in today. He can play at your house though, since it's fair to take turns." Now they don't even try to come in anymore.
We have three neighbors that are problems. We live in an affluent neighborhood with self-centered people. Not saying I'm in the wrong neighborhood, I tend to be self-centered at times too, but I can't bring myself to do it to kids. I'm not the perfect neighbor but I try to be fair and let kids be kids. The other moms? If poor Billy trips on a rock that my son's bike may have spit into the street the day before, they are at my door. If my son's with a child who does something wrong, they are at my door. The children who actually do the things? "Oh, I didn't say they were perfect, but...." There is no understanding, there's "Oh, yeah, I get autism, but...." I even had my son apologize once, to show good faith, and that wasn't even good enough since he didn't stand there to hear the child's response. You can't win sometimes, others' ignorance can't be beaten no matter what you do. Sad fact and one we're trying to learn to live with. Darned if you tell them your child has autism, and darned if you don't! ;)
Lily