A little background on my situation: I help out a musician friend, who is fairly recognized in his genre (15 years). I am the Street team Coordinator, I receive emails from fans who want to help promote local shows for this musician by printing out flyers and posting them around their town. I also help oversee the social media such as Facebook and Twitter, and a Street Team web site. I also design flyers and posters for the musician. I do all of this for free.
Here is the problem. The musician has designed a Street Team logo that looks a lot like the Harley Davidson logo. The shield in the HD logo has been changed to a guitar pic and his name is across in the style (similar font, but not the same) as the HD wording. I have told him that this is copyright/trademark infringement and that he could be sued for infringements and face hefty fines, including punitive damages. The musician has posted the image as the main photo on his personal Facebook page, his musician Facebook fan page, the Street Team Facebook page, and the Street Team web site. I know that the musician and his manager can be sued, but can I? I am concerned because I am aware that he is illegally using the image. I refuse to use the logo in anything I create, but because I oversee several of the Facebook pages and the Street Team web site could I possibly be sued/taken to court?
I have expressed my concerns with him, he said he understands and that this logo will just be temporary until a new design is finished (this could be a couple of weeks). I designed a new logo, but he is insistent on keeping the Harley Davidson looking image. Someone has already commented on his logo that "someone must be a Harley fan".