The ornamental design for a hood vent for an automobile, as shown and described.
FIG. 1 is a front elevation view of a hood vent for an automobile of the present invention, it being understood that in the views, a mirror image thereof is possible;
FIG. 2 is a rear view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a side perspective view thereof;
FIG. 8 is a front perspective view thereof; and
FIG. 9 is another side perspective view thereof; and,
FIG. 10 is another side perspective view thereof.
Any broken lines are provided for the purpose of illustrating environmental structure(s) and form no part of the claimed design.