Was this really necessary ?

The other day, as I was leaving work and heading to my car, I noticed that a police car had pulled over a guy in BMW. They had turned onto the Google parking lot and two cops were busy writing up the guy. There was only one problem, the BMW was blocking my car, so I could not get out. The BMW driver, nice looking guy in his 40s (I owuld guess), starts his engine to pull forward about 10 feet so I can get out. Very nice of him you may think. That's what I thought but one of the cops (almost violently) disagreed. The moment the BMW driver started his engine, the cop starts running towards that car and yells at him to shut off the engine. Not being shy, I offered an explanation to the officer (or whatever rank he may have had) that he is just trying to let me out. The cop didn't care, apparently the very mild mannered guy in the BMW (he looked very scared at this point) posed a flight risk and had to remain where he was. The cop tells me that they are almost done (in a minute) and that I can then get out. Well, turns out that a minute takes really long in "police world". Apparently, the super-eager cop was training a new cop who was learning to fill out a ticket which turned out to be more difficult that one might think, judging by the time it took. Well, finally, after about 10 minutes in my world, the two cops walk up to the car one on either side, trainee on driver's side and Officer Rambo on the other (with his hand on his weapon). Meanwhile, I was getting a little irritated. I did not know why they had pulled that guy over but I guess it was for running a stop sign or a red light, or speeding. Certainly not a felony of some sort since the BMW driver remained in his car. Anyway, after another 2 minutes they finally let the poor BMW driver go. Officer Rambo thanked me for my patience and I thought for a moment to ask him whhat harm would have been done by letting the BMW back or move forward about 10 feet, so that I can get out. I decided otherwise, since Officer Super-Hero didn't seem to have his best day. But you have to ask yourself, "was this really necessary?". It certainly did not kill me to wait and I am sure the BMW driver deserved the ticket but the whole "hand on weapon" thing was a little over the top and not letting the guy move was very much showing a lack of common sense.