Wow, Faced with a comment like this:
"You will not be setting one foot outside this house! Do you understand me?"
I'd be tempted to lay down the law with her. Hoewver, you avoided making Harry OOC, and I agree with your assessment that he'd probably shrug instead of telling her something like the speech that would come to mind for me:
"Mrs. Weasley, I'm gratified that you're so concderned about my personal safety. However, given that you are currently my house guest, I cannot approve of your attempting to dictate to your host concerning whether he may leave his own house. The fact that I'm not asking you to leave right now is a tribute to how much I care about the Weasley Family's safety."
That shows how much you have brought me into this story you're crafting; I want to tell off Mrs. Weasley, and she's a fictional character. Thanks for writing.
Author's response
Glad you liked it. There will be ample opportunity for hating a good many characters in this story. Currently (as of chapter 23), everyone is hating the Abbots - hard to believe, but what can you do? Please continue to share your thoughts.~Jim