He actually filed a little flurry of things right before the end. It was kind of hard to determine if he was asking for an STA or several different versions of class A facilities at various spots around Cross City. I'm not real sure that he understands the difference. In fact, that may have gummed up the works at FCC engineering. If I were them and the permittee filed a new modification every week, I wouldn't process anything until I was sure he was done changing stuff.
In any case, an STA by itself cannot be used to satisfy an original construction permit. So, even if the STA had been granted, he'd have still lost his permit when it expired. In cases where the permittee cannot construct due to legitimate reasons beyond their control, the FCC may grant an STA and may also grant 'tolling' which is when they stop the clock to allow a reasonable additional period of time. Tolling is the more important of the two and is harder to get as well. However, even if tolling is granted, the licensee eventually has to either build the original facility or has to have received a permit from the FCC for a new facility which has to be built before the new expiration date. After tolling ends, the new expiration date is usually the amount of time that had remained on the original CP as of the date the tolling request was filed. The STA facility does not count as a credit towards official construction if it differs from the actual station authorization (which it always does).
Johnson did ask for both an STA and for tolling, but the FCC was not persuaded since he gave absolutely no useful reason as to why it was necessary. He just said that he'd lost the use of the site due to reasons beyond his control. In an earlier document, the FCC concluded that Johnson's reason was that he'd waited until the last minute to do anything and he had no money. Those are poor reasons in the FCC's eyes, so they rejected the tolling request and advised him to build his authorized facility before the original CP expired. He was warned, so now he'll pay the cost.