I have the same problem...
Express Mail International® Processed
Through Sort Facility - November 24, 2012, 10:39 pm
ISC SAN FRANCISCO (USPS)
Electronic Shipping Info Received - November 25, 2012
Arrived at Sort Facility November 24, 2012, 10:37 pm
ISC SAN FRANCISCO (USPS)
Depart USPS Sort Facility - November 24, 2012
SEATTLE, WA 98168
Processed through USPS Sort Facility - November 23, 2012, 9:48 pm
SEATTLE, WA 98168
Acceptance - November 23, 2012, 5:04 pm
MONROE, WA 98272
I assume it is in customs because this is what the Canada Post tracking shows me:
2012/11/24 22:39 USSFOA,USA International item has left the origin country and is en route to Canada
22:37 USSFOA,USA International item processed in origin country
2012/11/23 17:04 98272,USA International item mailed in origin country
5th day now since any updates and 6 days since sent out, but I also have a order from Quebec and it hasn't updated since Monday the 26th... annoying but I am hoping CP is just getting lazy on updating the tracking. I just keep telling myself "it is not a postal strike, it will be here soon, it's not a postal strike".... and then I dance around the mail box naked while continuing the chant!
Edit: Cyber Monday shipments are probably to blame as well. I really don't understand the update on Nov 25th (Electric Shipping Info received). It is actually in between the two updates on the 24th?