Several Chicago-area chains, from Portillo's to Naf Naf Grill to Jewel-Osco, said last week that they were waiting until the deadline to do most of the heavy lifting. Others, like Jimmy John's, had retrofitted old menus with calorie counts in recent days. David Sloan, co-CEO of Naf Naf Grill, which paid more than $17,000 for new menu boards, said the chain hasn't decided whether it's going to put the new boards up immediately despite the delay.