Done at a body shop that does everything from full resprays own to scratches. SMART is just a technique for respraying a small/medium area and blending it in, avoiding a full panel job. Doesn't mean a body shop don't do the same thing. The big chains are after the insurance jobs so as more likely to go the full panel route where as a good Indy will offer SMART at a fraction of the cost, although the end result might not be as perfect - depends on the damage, prep and skill of the repairer.