The ornamental design for a safety/emergency lighting apparatus, as shown.
FIG. 1 illustrates a perspective view of a safety/emergency lighting apparatus.
FIG. 2 illustrates an inverted side plan view thereof.
FIG. 3 illustrates a side elevation view thereof.
FIG. 4 illustrates a top plan view thereof.
FIG. 5 illustrates an opposite side plan view thereof.
FIG. 6 illustrates a bottom plan view thereof; and,
FIG. 7 illustrates a side plan view thereof.
The broken line showing of openings and bottom central edge of the design is included for the purpose of illustrating portions of the “article” and forms no part of the claimed design.