Can I Make Photos At The Warehouse?

No, you can't run the equipment at the warehousestore unless you work in that department. You can, however, submit your photos online and then pick them up at the store.

To submit online from home, you will need a Costco Photo Center Account.  As a matter of fact, this is the only way to sign up for the Photo Center.  This method gives you the option to select which photos you want to have developed. You can also select all of those gift cards, cups, t-shirts etc.

Once registered, you can return to the website to check the status of your online order which you must pick up at the warehouse. Costco does not mail these orders.

Or

You can go to the warehouse store kiosk where you will download from whatever, card, phone, select first the photos and then the size of the photo or simply have the entire download printed. You will take the printed receipt (you will pay first) to the photo center counter later (perhaps an hour or so) to collect your photos.

While you cannot develop the photos yourself, the kiosk will allow you to set the parameters which is as close as you can get to "developing the photos" yourself.