My car is getting paint correction, a front wrap and ceramic coated. My detailer is a one man operation, but I believe has one assistant that works with him. I don’t know whether he is helping on my job or not. I tend to tip for most service related things, but this is my first time having this kind of work done and don’t know what is customary. I’m inclined to give something to at least help out the assistant, but don’t want to offend the owner/detailer who set the price for the job.