No Room at the Inn

The episode's title refers to one translation of Luke 2:7: "And she brought forth her firstborn son, and wrapped him in swaddling clothes, and laid him in a manger; because there was no room for them in the inn."

The American flag that the park officer who lets Matt and Mary back into town is wearing on his uniform is mirrored.

American flag patches worn on the right shoulder of military uniforms are mirrored so the field of stars are facing forward. This is to give the same effect as if the soldier was carrying a flag on a pole while marching forward. This is per U.S. Army Regulation 670-1 since 2005. Non-military agencies generally will display the flag in the standard orientation on the right or left shoulder depending on the uniform.