Nightmare. Glad they only have your mobile now. Just don't act suspicious if the TA rings you up and then say it was 'nobody' if Em's about otherwise you may end up in deep water.
Luckily I don't think the TA would be contacting you that often, only to inform you that the tickets are in I would have thought.
I would love a surprise trip to Orlando and I am sure Em will love it because there is simply no where quite like it. I don't know if Em likes shopping but you may find yourself in a mall or two.
The other thing I forgot to say is you may be best visiting parks in the morning as opposed to in the afternoon. I know when we go, the lines are always longer late morning/pm but usually we have arrived when the park opened and have anything we want to do in a few hours. However, we go in July/August when it is peak time don't know what crowd levels are like in September. Still it would make sense to arrive early and get more of the park done, with the minimum of waits, instead of arriving late and getting less done and spend more time lining up. Then you could always have a relax by the pool before going on to do something else.