I do not think that the lady did the right thing, at all, totally overreacting. She simply could have ignored the late night buzz of her doorbell.

But, who delivers cookies to an unknown neighbor at 10:30 at night??? Give me a break!!!!! I can't imagine ringing someone's doorbell that late at night, or even after dark, if you don't know them well and they aren't expecting you!

Seems like both parties could have had better judgement in my opinion.