I can't stand the way my neighbors treat their dog and I want to take it to the SPCA and tell them it ran away.
I don't like the sound of that. Why do you want to take your neighbor's dog to the SPCA?
They don't take care of the dog and I want to see it get a loving home.
It's good that you care about your neighbor's dog and want to help but it's wrong to take a pet that belongs to someone else. If you are concerned about the welfare of the dog, discuss this with your neighbors and if the situation warrants it, call the SPCA for a pet welfare check.
I don't think that'll be enough to help this dog.
That's really the only option here. If you follow through with taking the dog you would be stealing. That's illegal and you could go to jail.