I lane split here in Illinois, especially if there is traffic at a light. I don't really lane split at speeds though since don't really feel the need a lot of times, I would if there was slower traffic. They need to legalize it already.. I have had a few people honk at me, when I do lane split i go quite slow since its usually at a light. The other day I lane split to the front of a light passed an 18 wheeler and another car infront of it. That individual in a car was upset so he lane split infront of me into the intersection, then decided to just run the red light... second time ive seen that.