This is my first leave in about 100 games. Other than maybe getting 1 leaver level thingy, what else could happen to my account? I've never been banned before. Could this possibly get me a suspension?

One leave is definitely not going to get you suspended. LeaveBuster is actually rather lenient.

riot goes to your house and arrests u

Death penalty

One leave isn't going to hurt anything. Sometimes emergencies happen.

You're punished immediately by being unable to join another game until the game you left ends. If you chronically leave games, the automated LeaverBuster system will tag you.

Unless you had really vulgar chat logs to go with those reports, I don't think Tribunal would get involved.

As long as you don't leave excessively you'll be fine.

Although its your first leave, you have to remember, leaves are like ***. Even though its unlikely they will get pregnant the first time, there is a possibility you will get pregnant unless you take the proper counter measures.

It seems i'm going to be fine.
Hopefully i won't end up in the Tribunal.