I recently order a Qur’an from freequraan.org. It came with a set of instructions of how to treat the holy book. Among them:
Do not place the Qur’an in a restroom.
Do not place the Qur’an on the ground.
Do not place your feet near the Qur’an.
Do not place anything on top of the Qur’an.
I’m sure the US Postal Service is guilty of at least two of those.