Can I upgrade a DL pkg ticket to AP once on property?

[Fire14]

No, your on-site stay will qualify you for daily MM regardless of ticket type.

If you do want to see though if they will be bridging your ticket, you do need to use your ticket for a park entrance once. No park entrance I think they definitely will not bridge, with entrance you definitely stand a chance.

Yes I'll use than go upgrade after brfst or whatever that first day.