A lot of pop musicians and rock and rollers and DJs have stated that they listened to certain stations back in the day. At least in the Northeast and Midwest, that included WABC, CKLW, WLS, WCFL, WKBW, and WLAC. Some of the other stations vacillated between what we would call Hot AC or Adult CHR today, and Pure Top 40. In those days, those dayparted with or vacillating with softer edged formats, were called "Chicken Rockers". I would include Group W stations, WIND, WBZ, and WOWO, in the Chicken Rocker category, though as I got a little older, I liked them just as much or more.
Actually, I was just trying to figure out if I was actually hearing CKLW or WLS playing Bob Seger in late 1968. And I can't begin to tell you how many engineers and DJs over the years who have told me that "I can get in" to the PDs or GMs office when they wanted to or needed to. Some, like Bill Bailey at WLS, got caught. So while it may not have happened in that case, it could have happened. Just saying'...