FYI, we JUST did this in December. No one ever asked for our APs.
To the best of my knowledge, they rarely do.
Technically, AP rates are only offered to Current AP holders, but that’s never actually enforced.
When you check in, if they DO ask to see the AP, show them the voucher and simply offer to show them the actual pass after you’ve activated it.
I worried about this a lot before we went down, but I realize there was no reason to worry at all.