Hi there. Thank you for your patience.
I sincerely apologize for the delayed response.Yes, what you'll want to do is protect that Page with s2Member's "Specific Post/Page Restrictions".
see:
s2Member -> General Options -> Specific Post/Page Restrictions.There is only a conflict when you try to protect one Post/Page with BOTH Membership Level Access, and also with s2Member's "Specific Post/Page Access".
A Post or Page that is protected with "Specific Post/Page Access", will NOT be available.. even to Members. The only way to gain access to those Posts/Pages, is through a purchase...
( and no login is required ).
I've done an in-depth video tutorial covering this particular topic.
Video: http://www.s2member.com/specific-posts-pages-video/