I was stopped at the intersection of Rt 1 and 152 waiting to make a left turn onto Rt 1 to take Rt 495. The light changed green for cars going straight and I made a left turn against a red arrow. I was on the hands free phone with my vet talking about the dog and didn't see it the red arrow. As soon as I completed the turn I saw blue lights behind me. I put on my right directional and slowed to enter Lowe's to take this off the main road. When I stopped I opened all 4 windows, shut off the radio and car and sat with my hands at the steering wheels 12. The detective approached, introduced himself and told me what I had done. I said "Honestly, I didn't even see it." He asked for my license and I as I was handing it to him he asked where I was going. I saw the vets number on my phone on my dash and though for a second of saying the vet but I replied "honestly I am on my way to the range". He asked "so you are carrying now?" I replied "yes sir it's at my 4:00." He asked if I had an active LTC, and I told him I did while I was looking for it in my wallet. I accidentally handed him my pilots license. He handed it back saying that wasn't it. I looked at it and said "oh ya, that's my pilot license." I then handed him my LTC. As he was looking them over I asked if he wanted to see my reg, he said hat's not necessary. Asked what range I belonged to. I told him Mansfield. As he handed me back my documents he said that he was a firearms instructor, told me to be safe and have a good grouping. I told him thank you, be safe as well. and we both went on our way.