Can I report people after I leave the Game Recap?

I closed out of League after my game and my recap didn't come up because I exited out of the client like a genius, but I had a really rude Tristana who was blaming my Warwick jungle for her losing her lane at level 2 and I'd like to report her for being generally rude to me, the top laner, and mid laner for basically not carrying her.

P.S. Sorry for putting this in the wrong place the first time, my bad and thanks for correcting it