the story sounds realistic - but I have not had any unused sheets
there was a former dealership worker that saved a number of blanks found in cars during PDI "pre-delivery inspection" back in the day
my brother's '69 340 Barracuda had a months earlier '69 340 Swinger sheet in it that was used as scrap paper for a note taped to the car
That's pretty cool !
There was some blank repo sheets floating around years ago, but never seen or heard of one in a car. I suppose it could be some factory error or something.
I pulled a blank sheet out of a 67 GTX. Thankfully also found the original sheet.