Call the cops! consider getting photographic evidence of them stalking you, but then it'd look like I was stalking them, blarg
if it was a guy id report it and change my daily routine... and do some detective work of my own if it was a girl id confront her and maybe bitch slap her
quit all your night classes, take some self defense calsses and start getting really stand-offish and shitty with people because you don't want some asshole thinking you wanna be with him the rest of your fucking life because you smiled at him politely once. then you get kinda bitter.
Most ROs aren't worth the paper on which they're written. They do help cover your butt though it things get Serious down the Road...