We’ve done Instacart our last two trips. They do have wine and beer - but depending on where you order from. When using Instacart, you choose the store to shop from - Whole Foods there apparently does not have wine/beer, Publix does.
I don’t know if Instacart drops at bell services, you may need to be there to get it - both times I met the delivery driver (they texted when they got there). Also, since I was getting beer, I had to show my ID.
If you’re planning on coming back to the resort for dinner after the park, I would advise waiting until then. When you order from Instacart you can choose an approximate delivery time, and there are choices usually about an hour or two out.
For example, first time we used it, we were staying at Polynesian, and we went to the park just after arriving in the late afternoon. We then went back to the resort for quick service dinner, and we ordered from Instacart on the way back (or may have even been when we got back to the room, there was delivery still available for close to that time). The delivery arrived while we were sitting and eating, so I went and met her outside the lobby. Since there were a few bags, she walked in with me to where we were sitting, and I signed for everything. The second time we did something similar (staying at Wilderness - did a night in Pop the night before then transferred). We again ordered for a delivery time during dinner (we were eating at Whispering Canyon). Delivery came during dinner and I met them out by valet - they had put the bags on a bell services luggage cart. I signed for it, brought the cart in and left it by bell services - they were fine with keeping it there until we were done eating - then picked it up after dinner and brought it back to the room.
Also, be aware with Instacart that you should be available to text after your order. You’ll get a notification/text when they’re shopping for your order. If something’s not available or different from what was in the app, they’ll text you about a substitution option.
We thought it worked out really well for us both times.