Dollar General Sales Associate/Cashier/StockRoom interview questions

Unprofessional, another associate walked in to the interview and interrupted, proceeded to "hang out" during interview. Did NOT feel like I was respected or heard. Manager was stand offish and did not ask any interview related questions, merely asked if I could lift things, what my hours were and said I was hired. When discussing pay ($10/hr) looked at me and said "oh were you expecting more?".