Stephen King Pharmacy
This easter egg can be seen in all versions of the movie.
The pharmacy that the survivors visit later in the movie to get antibiotics for their injured group member is named, “King’s”. This is a nod to the author, Stephen King who wrote the novel which inspired the movie.
While the name isn’t really visible later in the movie, during the early scenes when the mist is seen entering the parking lot, and again when a man is attempting to run to his car before the mist comes, the store signs can be seen clearly.