Rapid Release Question

I'm working on our threat analysis workfow in response to WannaCry and Petya. I have a Rapid Release question. If I download and install the latest Rapid Release signatures on a specific device, and that specific device is managed by my SEPM, does the Rapid Release signature get 'over written' when the SEPM pushes out the next certified signatures.

I'm concerned that there may exist a situation where my Rapid Release install is rendered moot by the SEPM pushing out a possibly lower level set of signatures.