Patron Saint of the Self Park

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If you go to St. Peter's in Rome, you see gigantic statues of the saints along the roof line.  So, just because their focus is on a spot rather than a soul, why should the patron's of the self-park on east Lake be denied a similar flourish?  When you gaze up to the top, about ten stories up, you can see a small figure at the building's crest, the hood ornament to Stanley Tigerman's witty express of the facade of a parking garage as the hood of a stylish touring car.

But this is no generic grace note, but a very particular visage of a mechanic in full Statue of Liberty mode.  Who was the sculptor, and who was the model?