I'd be interested to know who would use these. I can only imagine them being a last resort if the ones in the main car park are all broken or in use. This also raises the question of what happens to the fuel forecourt once there aren't any ICE vehicles on the road. Change it to an EV charging hub would be the obvious answer... but then you've effectively turned it into a services area within a services area!
I can see services being remodelled eventually to remove the fuel forecourt, and make it so the main building is accessible to all the car parking/charging.