1. A system comprising: a first responsive object that is capable of determining its geo-location and of responding to a first inquiry by providing a first location datum that represents the geo-location determined; a first sensor for detecting when the first responsive object is within a predetermined vehicle; a second sensor for sensing the geo-location of the predetermined vehicle; and a proxy for responding to the first inquiry when the first responsive object is detected as being within the predetermined vehicle, wherein the proxy responds to the first inquiry by providing the first location datum, and wherein the value of the first location datum is based on the geo-location of the predetermined vehicle.