I drive my kid 3 blocks to school to avoid being caught in a conversation with my chatty neighbor
What is your reason for wanting to avoid a chatty neighbor anyway?
She is just way to nice. She is so nice that it makes me uncomfortable.
I totally understand that and if she scares you then it makes sense to avoid her. You're keeping yourself and your kids safe while still being cordial and that's really commendable of you.
Well, I told my neighbor that I don't have time for her and she needs to move on.
Well it is good that you are taking into account the safety of your child. However, claiming that your neighbor is scary may be a little unreasonable. You may owe it to her to get to know her as she may be a great person.