I haven't bought them online since they changed to plastic so I'm not sure what the system does now. But - when I bought them before, online was really easy. At the park, I went to a machine and put in the credit card I used and out came the tickets I had bought. It was very easy and there was no line at the machine at all.
If they still do that and it comes out paper, then head into the park with those and swap them out for plastic later on. Swap them inside the park, where the lines aren't as long later on in the day. (Guest services inside the park has always has short lines when I've gone. I think I've read of people swapping them at other location inside the parks too but I can't remember where they did that).
Edited to add: I totally missed these were FL passes when I responded. We used the kiosks when we bought AP's from out of state. We recently renewed some passes - going from non-resident to resident and we did have to do it at the counter due to proving residency. We did it at guest services.
