I don't think so, unless mycokerewards has changed their tickets. I had one that expired in August that said complimentary on the back and couldn't be upgraded. I gave it to a friend since we wanted four days when we went. My friend was only going for two days - it didn't save her a lot since she still had to buy a one day ticket, but it saved her a little.

If you know someone who is planning a one day trip, I'd give it to them. I think you can also post it here as a gift if you just want to give it to someone on the boards who needs it.