I'm in a little situation with a cop harring me and I just want to know some suggestions?

Okay, last night at 11:30pm, I was driving normally and stocked by a cop for about 1/4 quarter mile to my home. I turned into my drive way and he slowly pulled in too. I opened the door and he insisted that I remain inside the car. As he approached to my car, he asked, "Do you live here?. I said "yes I do, did you wanted to see my license? He said, "yes". I showed it to him. Then he had the nerve to ask me, "is this your car"?.( I drive a sporty blue 03 Infiniti G35 coupe with my kids and wife in the car, also I'm a 22 year old asian male & the cop was White). I said,"yes, did you wanted to see my registration? He said, "nah" and left. My question is, was this some kind of a discrimination act? What are your thoughts and suggestions? Just for future reference, thanks!