Do I need to be there to accept pickup of my loaded rental container?

You have to be there to unlock it because…

We need to verify that there are no prohibited items inside it and ensure everything is packed tightly enough to not slide during transit, so you need to be there for pickup to unlock it and remove any prohibited items we might find. 

You don't need to be there for delivery as long as you've cleared the area and we know where to place your steel container.