About a month ago I was working at my Job as a pizza deliver driver. It was about 9:00 PM and I pulled up in front of a customers house to make a delivery. I walked to the front door made the delivery and as I was walking back to my car I noticed a sheriffs car (with only its parking lights on) driving up the street very slowly like he was watching me. I got in my car and drove about two blocks to the end of the residential street and made a right turn. The next thing I know the sheriffs vehicle is behind me with its lights on so I stopped. As I was looking in my rear view mirror I could see the sheriffs vehicle pulling up very close to the back of my car so I pulled my car up a few more feet (I thought he wanted me to keep driving to the parking lot a few blocks up the street to get out of the traffic) when I looked in my rear view mirrior again I noticed the sheriffs vehicle had stopped so I put my car in park. The sheriff walked up to my car and asked for my license and registration, which I gave him. He went to his car and came back and then accused me of trying to flee the scene. I told him I thought he wanted me to pull up, the way he drove up so close to the back of my car. Next he told me to get out of my car and sit on the sidewalk, which I did. He walked back to his car and then came back and told me there was a problem with my license. (my license is current and my driving record is clean). He then told me based on this and his claim that I tried to flee the scene, he needed to search my car. I told him if he had to he could. Inside my car he found half a piece of metal pipe which I use as a wedge to keep my car hood up when I am working on the engine. When he went through my glove compartment where I keep my tools (my car is old and always breaking down) he found a hole punch type tool, basically a metal rod with a pencil point tip and electrical tape on the handle. He claimed both of these were dangerous weapons, even though I told him I use them to work on my car. At this time another sheriffs vehicle had come to the scene. So they had me stand up and they searched me and put me in handcuffs. While they were patting me down the officer hit me with his hand between my legs and I flinched as a reaction. The officer did say "sorry' so I do not know if this was intentional. I asked the second officer what I had done to be pulled over, he replied " why are you asking me, he pulled you over" I did ask the same question of the first officer and he refused to answer me. Then they put me in the back of their car. Next the second officer went to his car and came back with a book and put it on the hood of the car I was sitting in and both officers stood there looking through it. I could hear the officer who pulled me over keep asking the second officer can we charge him with this or maybe this. I guess neither one of them could figure out what to charge me with because the first officer got on his cell phone and made two calls and kept repeating his claim I tried to flee the scene and I had weapons. This went on for about twenty minutes. I could then hear him say no one knows what I can charge him with. Then the first officer opened the back door of his car where I was sitting and pulled out a card and read me my rights. He then said "do you want to tell me what you are doing with those things in your car" So I told him again, (for the third time) I use them to work on my car. Then he told me since I seemed like a nice guy and had cooperated with them they weren't going to arrest me. He told me they were however going to turn this over to the district attorneys office and they may prosecute me. He then asked me for my phone number because the district attorney would call me and let me know if they were going to file charges. I asked if I was going to get a receipt for what they were taking and he told me no. All I got was a small piece of white paper with his name, badge number a DR# and cpc 12020 dangerous weapon. I asked for a printed business card with his name, and he replied " I am sorry its an inconvenience to you but I am out of cards.) I wasn't sited for any traffic violation or ever given a reason why I was pulled over. I was wearing my delivery uniform and carrying a delivery bag so the officer had to have known I was delivering pizzas. I have no criminal record nor have I ever had any problems with the law. My question is what do I do now, if anything.