I am working on a deal where I can detail the police cars for my local PD. I live in a small town so there are only 5, but I hope to have them on a maintenence shcedule where they will be done several times a year. My question is this, are there any special precautions regarding the decals and emblems, letters/numbers on the sides of police cars? Is there any chance of damaging them with the PC and SMR, or AIO? I've never done a vehicle with decals or such on the sides and I would hate to make my first mistake with the police chief's car!! Thanks all for your help.