Since the guy I bought my FR-S from was an elementary school friend of mine, I told him to make sure they didn't drill the plate in because I wanted to do a plate relocator.
So when I picked it up, he had put electrical tape on the bottom (so it wouldn't scratch the bumper, wedged it in between the bumper and the grill, and then ziptied the top two holes to the bumper. Worked like a charm for a week and a half, and then I relocated the plate.
Sorry to hear about your BRZ!