forget what?

Yesterday as I parked my car, I saw the UPS truck pull in the front of my building, I ran and caught up to the delivery man, let him in the building, we both proceed to the elevator and got out on the 4th floor, he went left and I went right. Early this morning I found the parcel I have been waiting for in front of my door. The whole time I was thinking maybe he has a parcel for me, I got into by apartment and forgot to check and see if he did.