Can I overturn this action
I was at Walmart with my sister house shopping while I was there I turned my back a few times on my purse which is a no no and I get to the checkout lane pay for all of my things which total $80 walk out and the security comes up and say I took a $5 bottle of nail polish and I said I didn't they said its in your purse I looked and it was I said I didn't put it in there and they said we have you on camera but they don't. I don't know wheather it was my sister or the secret shopper who did it because the secrect shopper was following us for a while and I turned my back on my purse a few times when I ask to see the video they refused and called the cops who also lied and threaten me either I sign the civil suit paper or go to jail and I'm in school for nursing and have a little baby so I signed but I didn't do it so my ? Is 1st can they get in trouble for lying like that I mean obviously they don't have proof cause I didn't do it is that a lawsuit for them and 2nd will that affect me and my record can I try to fight the civil suit