Request: Like Box login ability when pages are age restricted

If there is something already in place, I was unable to locate it.

Otherwise:

My company has an age restricted Facebook page.

Using the like box when not logged into FB, it does not appear that any data is returned, and the entire box is blank.
(When logged in, it functions fine.)

I would request that if the page comes back and it requires you to be logged in, a login option be provided.

Along the same line, while logged in to FB, if the page is restricted, I would like to see something displayed stating the restriction(s) that is/are in place.

http://wordpress.org/plugins/facebook/