A method that includes allowing an installer to install a system at a location, using a biometric reader to collect the installer's biometric identifier upon installation, and using a communications device to notify a central station of the system's installation and transmit the installer's biometric identifier and time of installation to the central station. A method that includes providing a mobile postage system at a location, fixing the mobile postage system to a structure at the location, allowing a service user to secure a secure access panel on the mobile postage system, and allowing users to use the mobile postage system.