[jonnyb]

I would say they either forgot or it fell off.
For those reading the thread after this and taking possession of your car. Don’t get so excited that you sign the papers and jump in it and drive off (I know it’s hard to do). You should inspect your car closely for little defects before you leave. Many years ago I worked for a Ford dealership prepping cars for the lot. You would not believe how many cars come from the factory with flaws that have to be corrected before sale!