A couple days ago I bumped mirrors with an 18 wheeler that was parked about 2 feet into the traffic lane. It broke the mirror glass on my top mirror and his bottom mirror. It was on a busy highway during rush hour about 100 feet past an intersection. Management said that it was a sideswipe, making it a tier 2 accident but it seems to me that it would be considered tier 1 (hit parked vehicle). Would it even make a difference if it was re-classified as a tier 1 accident? Also, do I have any defense against it being considered avoidable? A couple things in my defense are the fact that the cars were bumper to bumper, so I did not have the opportunity to switch lanes, and it is against the law to change lanes at an intersection. Also, his mirrors were pushed all the way out while he was parked on the side of the highway. The police officer decided that he was at fault because he was parked illegally and was two feet into the mainlanes. I realize in hindsight that I should have just stopped my package car and waited for an opportunity to switch lanes, and the building manager said that I was not taking the path of least resistance and should have been in the center lane already. What do you guys think?