According to the website, there isn't another option. But, that was when it was first announced. Who knows if there will be an alternative way. The whole purpose though was to automate things...which is why AP holders see annual...other than ID, they don't want a CM deciding or trying to keep up...if the QR code says its good to go, show your ID and you are set. If it doesn't, then no dice for discounts.
But, still waiting for more specific info from
DVC which should have been out no later than today IMO. It already sounds like that things didn't get coded correctly and even when it is fixed, I bet we get reports of some owners who have been resale prior to this roll out getting coded as DVC Y and getting the discounts.