US Airways Dividend Miles (Pre-FlightFund Merger) - Question on checking in early using methods other then web check in

On Monday I'm flying ABE->PHL->SEA->YVR and due to the SEA->YVR segment on AC everything had to be on paper tickets. :( Virtually there is showing me waitlisted for an upgrade to first as a GP. ITN has F1 and 9s in most of the other fare classes so I'm guessing it will be a pretty empty flight in Coach but I rather sit up front :)

In order to increase my chances of getting the upgrade I would normally check in via the web 24 hours in advance to get on the list as early as possible, but since I'm on paper tickets I cann't use the web checking.

Since I live close to ABE, is it possible to check in at the airport 24 hours in advance or do I just have to wait until Monday and check in when the counters open at 5am and hope for the best?

"Customers with electronic or paper tickets may check in within six hours of a flight. "

Oddly, it also says you can't check bags in until 4 hours before the flight. I guess you can hang around with your bags for 2 hours if you have some.