Snakes in My Apartment

I am not a huge fan of bugs in general, and absolutely abhor scorpions and snakes.  This evening I bent down to pick up a piece of yarn on the floor and it slithered out of my hand.  WHAT THE HELL?!  I looked closely and it was a black snake about 3" in length.  It clearly wasn't a centipede or other insect.  I grabbed a sheet of paper, shifted it onto the paper and hurled it off the balcony.  Then I wondered what it was and how it got into a third floor apartment.  It looked just like this so it must have been a slender blind snake.  It only eats ants and termites, so now I feel guilty about how I got rid of it.  Hopefully it landed on something soft.  And hopefully there aren't any other siblings waiting under the furniture.