Yes. Know concealed is concealed, but how can they go against state law? Did it change? Kwtv 9 made sure and tell everyone guns are banned even ones with permit.
http://www.news9.com/story/30101509/off-duty-del-city-officers-take-down-man-with-gun-at-state-fair
http://www.news9.com/story/30101509/off-duty-del-city-officers-take-down-man-with-gun-at-state-fair