Am I worried for nothing?

My husband take sour toddler on drives each night because it’s the only way he can get him to sleep I guess.

He showed me in person he drives a loop around where our Walmart is. Been looking at the find my app on iPhone to see when he gets back but the past 2 nights I’ve looked he goes straight to the Walmart parking lot and just sits there.

What could he be doing? Our kid only sleeps in the car when it’s moving but he’s just parked there.