If Sears did not call police and the police did not detain you in the police station at that time, you have not had any criminal record. You should read the letter and call the attorney asking if Sears intends to prosecute you further. Seems Sears would let you go if you pay for their damange. If the problem is resolved this way, you will not have any formal criminal record.
Good luck.
Runan Zhang
Attorney at law
runanzhang.com
