The concept of "small convenience store near me" isn't the problem. The problem is that these stores are actively engaging in outright fraud. People who shop there are absolutely getting fleeced regardless of how much gas they burn getting to the store that's regularly ripping them off.
Having a small nearby connivance store and not getting scammed is an option. If the ability to get beer and hot dogs buns without having to drive to a larger more distant store is really worth the higher prices customers are getting fraudulently charged at the register, then these stores can just stop lying to customers and post the accurate prices.
If the laws were meaningfully enforced this is exactly what would happen. These stores would either comply with the law and stop committing fraud or they would be shut down, their CEOs would be sent to prison, and competitors willing to follow the law would step in to fill the need the market has for a small shop that sells beer and buns to rake in that profit for themselves.
Your article lists a few instances of target in an area failing at rates like 9% or 2.67%. The Guardian article shows dollar stores all over the place caught thousands of times and getting error rates like 76% 68% and 58%. One dollar store in Utah was caught cheating their customers in 28 inspections in a row! Maybe the News & Observer could have dug deeper into the Targets in your area and found violations of a similar scale, but they didn't, so from the information we have these are extremely different circumstances.
Having a small nearby connivance store and not getting scammed is an option. If the ability to get beer and hot dogs buns without having to drive to a larger more distant store is really worth the higher prices customers are getting fraudulently charged at the register, then these stores can just stop lying to customers and post the accurate prices.
If the laws were meaningfully enforced this is exactly what would happen. These stores would either comply with the law and stop committing fraud or they would be shut down, their CEOs would be sent to prison, and competitors willing to follow the law would step in to fill the need the market has for a small shop that sells beer and buns to rake in that profit for themselves.