I would say go ahead and wear your zta stuff around campus !! My bis sis's roommate just transfered to our school and was a Chi-O at her old school. Unfortunately for her we don't have chapter... but I saw her walking around the other day with a sweatshirt. I thought it was great. She is still a member even if she doesn't go to school with her sisters anymore...

I don't think anyone who is greek will look down on you.. Hey they know what its like to want to represent your org even if there isn't anyone else around to represent with you... that's all I have to say about that