Hey Little, oh I have to laugh when your stories are so similar to mine. The "urgent" pick up and drop offs that are all about nothing... this has been my life the last few months. I even dropped off something else with him last night!
Your BF will certainly be coming up with another reason to communicate.
I agree that it is good to seem busy and be out when he wants to drop off or pick up. That is what I did with my H and he started to get really desperate with his urgent item exchanges. He insisted that I be there to "exchange" because the items were so important. (not) I felt that unless he actually asked to see ME and didn't just come up with an excuse, I would avoid him.
Five months in my H still uses things I might have of his or that he has of mine to remain in contact. Yet later on when we do hang out he never brings the items he has of mine. Suddenly they are not so urgent.
I know your BF will come up with some reason to stay in contact.