OMG MY SISTER BOUGHT CIGARRETES FOR A MINOR!! HELP?

at giant eagle and she works there. she went in and asked for them after she never got them before. she then went outside and gave them to the guy. do you think theyll know? do you think she ll get caught. shes crying and never does anything like this, she said she didnt know why she did it under peer pressure and she feels really bad. hes going to be 18 soon tho