Here goes: It didn't occur to me to buy it while we were there, either, so I tried to find some online. How hard could it be? Everything's on the internet, right? Well, I only found one place that carried the teas, and they were in Canada. They shipped FedEx, who would not leave it at my door. Not even if I signed the slip, emailed, called, pleaded and begged. No Saturday delivery in my area! They wouldn't go to a neighbor, and said I would have to drive 2 hours to pick it up (even though there are multiple FedEx locations in my city), BUT I'd better call the warehouse and see if I could talk anyone into working with me since it is a warehouse.
Sorry for wandering--moral of the story for everyone else is, if you want it go ahead and try to buy it while you're there no matter what anyone tells you.
Incidentally, I did get my tea. I had to have the company I bought from call FedEx and complain. FedEx had said that they wouldn't alter policy even if the shipper called, but apparently something about the whole situation finally struck a chord with somebody.
ETA: They didn't tell me any kind of signature would be required when I bought the tea. I really don't even think the shipper knew. FedEx kind of sprung it on us, and we never did figure out why...but if you want to try it for yourself I can look up where I found it. I don't remember if they had the Princess blend, but we bought Eros and Mad Hatter.