Parcel carrier rang the doorbell downstairs, but s...

Parcel carrier rang the doorbell downstairs, but simply parked the parcel down by the stairs in an apartment building. We also have a doctor in house and a lot of visitors. If the friendly neighbor hadn't seen it and brought it up, it would certainly be gone.
I have no problem that he puts it down, I can understand that he does not want to go up 4 stairs, but he should let me know that he is doing that, then I just run down to get it.
Most of the time the DPD deliverer is too good, but unfortunately not in this case.