Best to shut up. Also, lock the car and put keys in pocket if you are asked to get out. Windows should already be rolled up except for driver's side. This is to avoid miscommunication*.suthdj wrote: I might be wrong but you don't have to tell a LEO what you do or do not have in the car and lying is not illegal, last I knew police use it to their advantage.
*such as when LEO asks some type of double negative question in order to obtain consent from you to search your vehicle. Example: "You don't mind if I look around inside your car do you?"