Methods and system for securing delivery of a parcel when an intended recipient is unavailable, comprising at least one storage receptacle having an electronically controlled locking mechanism, the storage receptacle comprising an interface for receiving an access code for facilitating unlocking of the storage receptacle, a wireless communication radio, and a processor. The system further comprises a remote service manager comprising an access code generator and a wireless communication radio for transmitting an access code to a mobile computing device operated by a delivery carrier. The mobile computing device includes a wireless communication radio, one or more processors, and a memory comprising instructions which, when executed by the one or more processors, cause the one or more processors to: receive, via the wireless communication radio, from the remote service manager, a single use access code for facilitating unlocking of the storage receptacle, and transmit the access code to the storage receptacle interface. The storage receptacle processor confirms the validity of the access code and causes the storage receptacle to first unlock and then lock after detection of the parcel within the storage receptacle.