Not According to this
https://www.macrumors.com/2017/10/31/iphone-x-reserve-and-pickup/
Unlike the standard in-store pickup option offered during the checkout process on Apple's website, which requires paying upfront for the device, the Reserve and Pickup system lets customers pay for the device in store upon pickup.
Reserve and Pickup also lets customers bypass the current 5-6 weeks shipping estimate of pre-ordering with in-store pickup.
The pickup generally must be completed within a 30-minute window selected, or else the reservation may be canceled. A valid government-issued photo ID must be shown at the store, and there's a max of two reservations per customer.