If it is a Terry stop, won’t the cop immediately ask you to step out of the vehicle?
Depends on their attitude and how much they know about the law. I usually get it defined early on in the conversation. I would not recommend it unless you have LOTS of experience both talking and in the law but if they tell you it is a Miranda stop ask them if you still have to provide information that might incriminate you. Locks many of them up right away - can be good fun. make sure you have time to deal with it though if they decide to haul you in. Interestingly enough I do not and have not had the problem of definition with the NHP. The young punks from the CHP are a real pain.