I have done absolutely all my grocery shopping at Walmart for the past 5 years. Every time (in North Carolina and Arkansas), there has been an officer's vehicle outfront, and to be honest, it gives me a sense of security while i'm inside the store. I've seen people shoplift, and when approached by loss prevention, try to run. I don't know if that's the reason for the officer to be there, but it's a good one if it's not.
I've also used the self checkout lanes at walmart (again, in North Carolina and Arkansas) and it can be frustrating when things won't scan. Every time, there is someone there to help (that one person might be responsible for helping all four self checkout lanes, but they are there and they will help you).
I'm sorry, it just doesn't add up. If they didn't have you on video commiting the act, then any defense attorney would have it dropped.
If it was a "misprint" as you stated, you wouldn't be paying thousands of dollars in restitution. Honestly, I don't believe that part either, unless you've been convicted of shoplifting before and the court was trying to send a message. Walmart doesn't "try" to get their customers arrested, but LP people are there for a reason, Walmart loses millions of dollars each year to shoplifting.
I don't understand why people post crap like this, you weren't ripped off, you were convicted of shoplifting.