I was just driving about with the new left/right police lights, and I thought that there should be a configuration for the pickup with those light up orange arrow things like you sometimes get at construction sites. There could also be one of those trailers with an orange light up message, maybe it could be like with number plates where you type something in in the parts selector, then press the headlights button to turn it on. If someone's already made a mod for something like this, then brilliant!, but it should be official content.
