It is possible that you will be charged. In South Carolina, if you took steps to aid someone in committing a crime, you could be considered an accessory to the crime. An accessory charge carries the exact same penalty has if you had committed the crime yourself. The same is true of the other person involved, but it cannot be said for certain if you will be arrested or charged with a crime. If you did not know that your friends were going to shoplift, then you probably didn't knowingly aid them in committing a crime and you may not be an accessory.