This story may be apocryphal, but there is a quite similar story that is 100% real. In September 1989, Boris Yeltsin (famous Soviet politician; Gorbachev’s successor, more-or-less) traveled to the United States. This occurred as Warsaw Pact nations were finally breaking free, mostly not-quite-yet. The political situation was very fluid.
Yeltsin went to Houston and toured the NASA facility there, which was intended as the showcase of the visit. But afterwards, as Yeltsin was being driven to the airport, he suddenly asked to stop by a local supermarket that he could see from inside his limousine. This stop was unscheduled and unannounced. I suspect Yeltsin did this deliberately so that he could observe genuine, spontaneous conditions in the store.
The supermarket was a Randall’s in Clear Lake, TX. He spent about 20 minutes inside the store and was, by his own later admission, stunned into silence. The sight of ordinary, middle-class Americans casually selecting better food, and with a wider variety of choice, than even what Politburo/nomenklatura members could get in the USSR left him deeply shaken. He knew from that moment on, that the Soviet system — call it socialism or whatever you want — simply could not survive in Russia for much longer, and indeed it did not.