I've been looking around at some auto parts stores and can't seem to find my car's paint color. It's 75U/WA9540- Brilliant Red Metallic (I guess Maroon didn't sound spiffy enough). I went to the GM parts counter and asked that guy about it, he said that only F and Y bodies got that color, and that it was discontinued. Is there any way I can get a spray can or touch up bottle of this stuff, or do I need to go to a paint shop and have them mix up a batch?