I was caught shoplifting a $16 item, what would happen to me if no police were involved?

LP guys took me to their little room. They made me fill out the form that says I will not be able to come back to the store ever again. Took my picture. Then on the paper where it was something about charges he crossed the whole page and wrote Not Applicable, as he explained because the item was under $20 and undamaged, and I was honest and cooperative and provided them my ID, SSN and all the information they asked, there will be no court and no charges. So does it mean that I will not receive a citation or civil demand by mail? Or it doesn't mean anything and I still have a chance to spoil my criminal record? It's my first and definitely last stupid mistake, never got to the court even for the red light or something like this.