This seems either unlikely or questionably competent. Gordievsky was well known to the KGB and loitering pointlessly outside a bakery would only have aroused suspicions - which would have been confirmed by the second agent, because anyone carrying a Harrods bag in Soviet Moscow would have stood out like a very obvious person of interest.
It could be a matter of routine: Leave your house at 7:00AM every morning. Walk 15 minutes to the bakery. Order and be out the bakery door by 7:20AM. In normal circumstances, you just leave and go about your day. Only once would you stand around for an extra 4 minutes - say reading a paper, or eating what you just bought. Otherwise it looks like a normal routine.
