A lock system is coupled to a lock at a dwelling of a dwelling user, resource owner, or end-user, collectively the user. An intelligent door lock system is provided with a remotely operable lock at the dwelling accessible by the user. The intelligent door lock system is configured to be in communication with a server. An automatic unlock system is activated when the user communicates with the server using the user's mobile device. The server is configured to transmit a crossing notification message in response to tracking the user's mobile device and enable an automatic unlock feature of the lock using the server and a mobile device App.