Possibly. A more efficient approach, would be to have a demo 
light to carry with you. Approach the manager with a with a 
light half restored. You won't be denied the chance to show 
him your work because you will have it right there with you. 
It will also save you much time from doing no pay demo's.

To prepare a demo light find a corroded one from a salvage 
yard or one from a body shop that has been damage on the 
back side (one they will throw away). Mask off half of the light 
and restore just one side. Use a canvas bag to carry around 
so the restored side doesn't get scratched up while in transit.