First off remember 99% of these stops are video and audio taped, so starting a confrontation on the roadside is not good.
Having said that I personally want you to stay in the car on a stop, because of several reasons, two of which are,
First I have broad control over you area of limited movement, I can take advantage of several techniques that we regularly train on which are designed to make you maneuver in odd ways to communicate with me, and I have unlimited movement outside the vehicle. For you to get to me you have to get out of the car, which takes an action and buys me some time.
Second, you are in a comfort zone and therefore more relaxed during what may be an upsetting situation for you.
I have placed people in cuffs for jumping out of the car and acting odd, but usually they immediately became verbally combative right off the bat sending up my red flag and the situation went down hill from there.
But in the end it’s all about you and I firmly believe unless I’m doing positive speed enforcement (and have a predetermined threshold for a ticket on a stop) or click-it-or-ticket, you are going to decide whether I issue a ticket or not.
If I stop you for a minor stop sign violation such as a rolling stop, or a right turn on red where prohibited, hey it’s a warning unless you demand otherwise.
Tail light out, courtesy stop to let you know of the defective equipment unless you demand otherwise.
General goofiness such as a teenager acting stupid behind the wheel trying to impress his equally stupid friends or scared girlfriend it’s a warning unless you demand otherwise.
I stop folks all the time for 87, 88, 90 and even last night one for 97 in a 65 mph zone.
I stroke’em but if attitude is polite, not friendly mind you just humanly polite as it should be, I’ll scratch the ticket for 79 in a 65 or 89 in a 70 just to save you the points towards a suspension and your insurance agent stroking and bending you over his desk.
As the told us in verbal judo,
“Let attitude float like boat down stream”.