Well, I did it. Wasn't too hard. Be nice if ODFW just did it themselves.
If you use Google Calendar, just "Add a friend's calendar" and use this address: smh3iag8pqpn9s52m31k9r8t28@group.calendar.google.com
For XML, use smh3iag8pqpn9s52m31k9r8t28@group.calendar.google.com
For ICAL, use...