I'm a little surprised that SCDPCGC would expend so much "effort" into creative when Chevy won't even pick anything until 1970. Ultimately, I have to agree with Don.
I wonder if Don's shutting out Chevy is just the first step in checking out of Creative entirely, except as an acceptor or rejecter, and leaving the charge to Ted and Peggy. If that turns out to be the case, then CGC won the creative war against SCDP.
Sally and Bobby are lucky beyond belief that they weren't harmed or that someone more dangerous didn't break in. This cannot be stressed enough.