Booked a last-minute flight today, and now I can't OLCI. When I attempt to check in, the web site tells me "Check-in has been restricted to the gate. Airport check-in is required." The flight in question is 5 hours out, and the message at OLCI is making it seem that the GA has already taken over the check-in for the flight. This can't be right, can it?

This is a short UAX flight, and I am ticketed and confirmed. Currently, it looks like the flight is delayed about 45 minutes.