I love these stories!
This should maybe be in the "most unusual places you've seen your letters thread." On Saturday I was at the women's prison with my Girl Scouts Beyond Bars troop, and there was a car in the lot with an AXD sticker on it. It wasn't a prisoner of course, and it wasn't a regular visitor because regular visitors weren't allowed that day. So it was either an employee or another volunteer. Unfortunately, I didn't get to meet whoever it was.