Also, scroll to the bottom of that publication and use the links at the bottom (especially the official .gov ones) to do further back research to even more official stuff including some that if you trace the links back far enough are official statement to LEOs as in "do this" and "don't do this" kind of stuff telling cops what they are supposed to do and not allowed to do from a position of higher authority further up the chain of command. Similar to when state attorney generals issue similar statements (check those for your state too for anything bicycle right of road use related !!!)