We flew into San Diego on Saturday and took a cab to Hampton Inn. Since check-in wasn't until 4:00, we left our bags and took a tour around the city and Coronado. When we got back, we checked in and reserved two places on the 11:30AM shuttle to the pier.
The next morning ate their complimentary hot breakfast and then walked three blocks to Rite Aid because I had forgotten my cosmetic bag. We checked out around 11:00 and took our bags outside. We left at 11:15 and took the short ride to the pier where we got an unhappy surprise - the Infinity had been delayed until afternoon because of an emergency medical evacuation. We then gave a porter all our bags, including carry-on, which had cabin 2106 tags on them.
We then went into the terminal and were directed to an Express Check-in line. When we got to a representative, we showed our passports etc., and she said that our key cards were for cabin 6047 - - Yippee, the upgrade fairy had visited us!!!!! (this was our second time on Infinity, and the second time we received an upgrade from outside to balcony)