Agreed. Parking in MP is not a waiting line like one for the vending machine or coffee machine haha.
I agree that it is very difficult to park your trailer in busy areas and with other people constantly moving around your parking place. On the bigger pickup/delivery areas you can choose the option to auto park of course.
As already said its difficult to come up with a solution. I do not know what can be changed by code.. For example in the area of where you need to park you trailer +- 2 m around its best place to ghost but to include the whole NCZ i foresee isues with the entry and leaving caused by sudden appearance.