1. How long until they noticed the sign was missing?
They noticed it missing that day when they were cleaning up from the show. For the record, it wasn't stolen by me (I have never been to Fierorama).
2. Did the sign vanish before or after the show?
After the show...as the guilty party was leaving the show.
3. Where is the sign headed, next?
It is headed toward The Fiero Factory next...then we will see who picks it up from there and takes it to the next show.
4. How did NIFE, um, say they wanted the sign back?