It Starts With Two License Plates…

You sell the car and now what do you do with the plates (if you don’t send them back to the DMV)? You nail them to the garage wall. At some point a friend gives you a set and they get nailed below the first ones… and on it goes.

 I’m wondering if the inside got papered with plates and the homeowner’s only option was to start using the other side of the wall – the outside of the garage.

 I was so enthralled with the garage that it took me a while to realize that there was a second garage behind the first one. By chance, is there another one that is not visible from the street?

 Do you know where this is located?