1.) at auction
2.) they are available to other agencies. MSP, MEP, MDC, etc vehicles formally belong to the commonwealth office of administration and finance, just in the custody of the individual agency. once the agency has no more use for them they turned back to the state, who then has their own protocol for either reassigning the vehicle offering the vehicle to other government entities, oe selling at auction. all you need to do is put in a written request for one. i'm pretty sure MEP recently transferred a vehicle to a local USCG unit....