How and where did your free pass token land in your hands?

Found it just last night, in a pile of free stuff left by the sidewalk near the New Seasons-7 Corners grocery store in Portland, Oregon. Probably left behind by someone moving out.
What is the story of your free pass? how was it needed/used?

I just discovered this site and this art project through the chance finding last night.
Have you passed it on, yet?
Have not passed it on yet.
Lynx636