I am having this problem myself, as you can see in the picture, that's the result after I quit the game. What ticks me off is that I have turned off all possible AV software, and above all, have tried the fix they provided in that link to the RAGE website 3 times, to no avail. I am not even sure what's causing all this. All my files are unblocked, so there's no question on that behalf. What could possibly be causing this?!
Worth mentioning is the fact that this a clean install of GTA V; I uninstalled the previous one and just downloaded it from Steam, naked, about 4 hours ago. Maybe I am missing out on something? Not sure - but it sure as hell is an unexpected problem. I installed LSPDFR just as I did last time, which was also (what a word game) the first time.