Need to override block visibility to resolve issue with client's site

So I configured a very basic Drupal 5 installation and set up a few modules for them to be able to create their own content. I also specifically changed the visibility of the login block to a new page (?q=login).

However, it appears that my client has now removed the block from the left sidebar (garland) and it can no longer be seen from the login page. The dilemma is I can now no longer login.

I understand that, in reality, I did not need to create the separate login page and create the visibility setting. I will fix that once I can override this block.

What I need is to be able to temporarily override the visibility setting, change the block location, or force a login to be able to fix this issue. Any ideas?

- Jeff