The part inside
\iffalse ... \fi is never executed but should fool your editor that the inline math is ending there.
Another option is to never use
$ there in the first place. As
\path redefines special characters to typeset them, some more verbosity is needed:
^^d is a TeX variant to input
$. So we define a macro that expands to this character but has to take care to expand the macro before
\path starts processing its argument, hence the
Another option does not work for the ShareLatex.