Same thing happened to my friend almost 3 years ago which led me to make a thread on How to get to Partas bus station because of his experience in that area. That is why I am very thankful to those who replied since I never experienced getting flagged down in that area since I know that coming from EDSA southbound going to Aurora, I should turn right at New York. And to never turn right to EDSA southbound at the EDSA-Aurora intersection.
How about coming from Aurora, Araneta side, can you turn right to EDSA North bound and not suddenly get pulled over for "illegally turning right" based on their invisible signs?