Not trying to be argumentative, but:
When this happened to me, I was unable to even access this site, period. As a result, I could not PM a mod or admin using the forum resources. I also didn't happen to know site admin or mod email addresses, since I would need to log in. Kind of a Catch 22, if you see what I mean?
Afterwards, back at home, I could again access the site, but by that point, the opportunity to use ip2location.com or similiar locating tools is kind of lost. Meaning, I can't do what you recommend here, because, well, when it happens, you can't.
Now, granted I'm no interweb guru, and I am probably missing something obvious. If so, what would I do differently?