Parking meter

Location
s are found in some parking lots in the Capital Wasteland in Fallout 3. Some locations are:
 * Jury Street Metro Station
 * On your way to Rivet City going along the coast of Project Purity.
 * Scattered along the Mall
 * There are six in the parking lot next to Meresti Trainyard. One of these is backwards for some reason.
 * Almost everywhere in Downtown D.C.
 * Fairfax Ruins

Parking Meter
The meters seem to serve no purpose at all. You can activate them once to start the timer but the timer doesn't seem to end afterward. They were made in the old days before the "nukes" hit. There is no factory or production facility in the Capital Wasteland, Point Lookout, or The Pitt in which they might have been made. They are indestructible and will always work. They also cannot be used as a weapon. You cannot store items in them nor store in inventory.