The best way to disentangle is to avoid entanglement in the first place.
Predatory behavior happens because you are disconnected from the economic consequences of scholarly publishing. You are not accustomed to evaluating the business models of the journals you publish in. Libraries have done that for you, and wrestled with the frustrations of exploitative publisher practices for years so that you don’t have to. Now you yourself are paying directly, and you no longer have the luxury of pleading ignorance about the way scholarly publishing monetizes your labor.
Learn about your powers under the Copyright Law. Until you sign something, YOU OWN YOUR COPYRIGHT. If you co-author a paper with multiple colleagues, YOU ALL OWN THE ENTIRE COPYRIGHT INDIVIDUALLY – each of you can exercise all of the rights under copyright independent of the other (yes, it can lead to complications). The publisher’s leverage rests entirely on securing your copyright from you. Until you transfer your copyright, you have the leverage. Consult http://www.authorsalliance.org or http://sparcopen.org/our-work/author-rights/ to learn about what that leverage means for you.
Do your homework when considering an opportunity to contribute your labor to a publisher or to publish in a particular journal. Get out of the mindset of trusting the scholarly communication system to coddle you -- it never actually has. Who is it that’s asking for your copyright, and what are their practices? Don’t wait until its too late.
Familiarize yourself with Beall’s list, but crosscheck with a reputable Open Access quality indicator like DOAJ or OASPA. Pay attention to who publishes the journals you’re considering, and what those publisher’s reputations are.
Take to the web. Disavow the predatory practice loudly and often on your blog, your website, Twitter, Facebook. If you don’t have a web presence, now’s the time. Comment if possible where your work has been illegitimately posted. Craft your own narrative in opposition to the predatory scholarly record.
Communicate with your colleagues to tell your side of the story, so that your disciplinary network understands the truth.
Authors Alliance promotes authorship for the public good by supporting authors who write to be read. We embrace the unprecedented potential digital networks have for the creation and distribution of knowledge and culture. We represent the interests of authors who want to harness this potential to share their creations more broadly in order to serve the public good.