CA Police

[240SX714]

A while back ago (more than a year) me and a couple of friends got out of a club at around 2 am. There is a Denny's next door, but we decided to wait around and rest so we don't throw up in the restaurant. I was sober that night, 2 of us really drunk, and 2 more is somewhat sober. About 10 minutes later, a cop came by and started asking us questions. Since all of us are Asians and have tattoos. He immediatedly questioned us about our gang affliations, asked for our social security #s, asked where we worked, where we went to school, our addresses, etc.... At first, I refused to give up my SS #, but he said that I HAVE TO. Reluctantly I gave it up. At this point, he is taking notes furiously into a little booklet. He also took all of our fingerprints. He said that they'll keep tabs on us for the next 3 years in case we do something. He told us to lift our shirts to check for more tattoos and he's basically documenting us. We sat there for more than an hour while all this is going on. Two guys ended up spending the night in jail for public drunkeness. I ended up eating breakfast in Denny's and didn't come home till around 5 am. Tell me what you think of this story, and do cops have the power to profile and document us like this? Do they have the right to search our body for tattoos without our permission? What about taking our fingerprints?
All this happened in Hunginton Beach btw.