Last week, I was driving down a two lane expressway when a GSP pulled in behind me. I was talking to my son just as he was coming up behind me and I went over and touched the right hand line. The officer followed me for about 3/4 of a mile and proceeded to pull me over. He of course asked me if I had been drinking and I told him I had not. He told me that he pulled me over because I had crossed the "fog line". I told him that I saw him pull in behind me and that I knew I had touched the line once. He took my info and came back with a written warning for failure to maintain lane. I asked him what constitutes failure to maintain lane, and he told me that if I touch the line, he can write me a ticket. Does anyone know if that is correct? I quess it just ticks me off that I was doing nothing wrong and end up getting a written warning. I do not mind being pulled over, just the fact of him writing this up. While he sat there with me for 10 minutes, he could have been looking for someone that was TRULY endangering the public. Sorry this is so long.