I retired from the auto body business 18 years ago. I had a customer who insisted on using a bra on the front of his 280 ZX. I told him not to use the bra on the fresh paint on the nose of his car for 6 months to a year, for which he paid me no heed. After 6 weeks he complained that the paint that I put on his car was no good. On examination I could see the outline of the bra on his car from the paint that had gone bad. I again informed him that paint should dry for 6 months to a year to allow the thinners and reducers to out gas, otherwise the gases will push the pain from the metal. Maybe with todays better paint and a bake dry oven this will prevent this problem, but its your car, your paint and your gamble.