They responded to this mail by "return: reason - no one at home"

The delivery guy just left with my parcel at the delivery spot. He explains that he can't come in and drop my parcel because it is important that he doesn't leave his car unattended, he said this is the instruction he took where he works that he shouldn't leave his car not attended.

Is this how it works? I am receiving the service for the first time, so please clue me up. What about my parcel that I have waited for patiently? I thought my exact address was requested so my parcel can arrive at that exact address and not at the entrance. Please attended to this as I need my parcel urgently.

Thanks.