The ornamental design for a parkinggarageservicecenter, as shown and described.
FIG. 1 is a front perspective view of the parking garage service center showing my new design;
FIG. 2 is a second perspective view of the invention of FIG. 1;
FIG. 3 is a third perspective view of the invention of FIG. 1;
FIG. 4 is a top plan view in elevation of the invention of FIG. 1;
FIG. 5 is a rear side view of the invention of FIG. 1;
FIG. 6 is a front side view of the invention of FIG. 1;
FIG. 7 is a side view of the invention of FIG. 1, as seen from the left side of FIG. 5; and,
FIG. 8 is a side view of the invention of FIG. 1, as seen from the left side of FIG. 6.
The broken lines showing automobile elevators, parking spot designations, and various furniture articles are included for contextual purposes and form no part of the claimed design.