Your situation is not uncommon, but you need to be prudent. Before you do anything, you should consult with a criminal defense attorney in your area as soon as you can. Bring the paperwork from Kohl's to that consultation. It might be a good idea to choose a lawyer who offers free consultations if you're on a limited budget.
If you cannot afford to hire an attorney, you may contact the local Public Defender's office. Their office in St. Louis County is 314-615-4778. They may be able to give you some guidance as well.