The tweet in question (which did not feature our lovely hotdog photoshopping skills) has since been taken down and TWC Austin has issued an apology. It's unclear if this was the result of a hacked or hijacked account, a vengeful employee, or what. Either way, TWC News Austin's 33,000 Twitter followers got an extra helping of meat this week.
UPDATE: Experts at Errata Security are quick to point out that this report is full of misleading information. For one thing, much of the reporting is done from Moscow, over 1000 miles away (thus making concerns of physical location less conclusive). Secondly, much of the malicious software in question would have to be willingly downloaded and installed. Though many Russian-based Olympics sites may be questionable, it has nothing to do with Sochi itself.