I wanted to relay the 'Walmart Grocery Pickup experience for a first time user'. This may all be redundant for many, but perhaps it will be useful for some.
We have been trying to get some groceries delivered, or available for pickup, for a few days. No lock from our normal grocery so I tried Walmart. It took a few days.
Created an account on Walmart.com, make sure you remember the password, because you will need it later. Loaded grocery lists into a cart. Then went to reserve a time slot. They would deliver, or you can pickup. We chose to pickup, we felt it would minimize handling and we are only a couple miles away. Plus save the $9.95 delivery charge. 2am Wednesday morning, I was wandering sleeplessly and decided to check for an available slots. Turns out, there was a large number of delivery or pickup slots available for Thursday. (Basically, next day). Picked a slot and submitted the order. It said that we could adjust the order until 1:45 am Thursday morning.
This morning, I received an email that said pickup was ready, and to checkin on their app when I was headed to the store. So I downloaded the app, and after fumbling with the password and such, was able to click 'We are on our way'. Drove to the store, and parked in one of their pickup parking spots. We debated what to do next, and were ready to call the number on the parking spot sign when an employee with a cart came out the door and rolled up to our vehicle. I popped the rear hatch and she put the groceries in the back. She said that I could sign the pad, or I could let her do the signing (which I did). She stayed well away from the vehicle when possible. She said 'I see this is your first time, any questions?' And I asked how they knew which parking spot I was in. It seems that the app (you need to enable location for it) would signal them that we were inbound and where we were.
All in all, it went very smooth. It is now close to noon, and I see that there are still pickup slots available for tomorrow at noon at a Walmart that is about 12 miles away from here. I had read somewhere that they release new slots around midnight, so that may be the key. Grab a slot early in the morning, and then make out your grocery order and submit it.