I want to confront a woman idling in a take-out only parking spot
Oh really? How do you feel about this woman taking up a parking spot she doesn't need?
I'm feeling very angry. My blood boils.
You shouldn't get into altercations with someone over trivial things. This could cause them to be upset and combative. It's best to ignore these people and save yourself some trouble.
I have to say something and make a big deal out of it.
I understand you're mad, but you shouldn't get into altercations with people for such a small reason. You should just leave her be.