A sign, other than a window sign, located entirely inside the premises of a building or enclosed space.
b.
A sign on a car, other than a prohibited vehicle sign or signs.
c.
A statutory sign.
d.
A traffic control device sign.
e.
Any sign not visible from a public street, sidewalk or right-of-way; except that the foregoing does not exempt a sign for a commercial use that is visible from an abutting residential use.