Struggling with Special Characters in parameter text

Trying to use a parameter to add extensions to my URL calls (ex: LR.getParam("URL_Parameters") where LR.getParam("URL_Parameters" is &myparameter=0, however the special characters keep getting mapped to UTF-8 codes (& and =0 respectively).

If I use the UTF-8 codes in my parameter file, I STILL get the UTF-8 codes in the URL string instead of the special character, how do I get the special characters themselves to be in the URL code?