This is a really weird story. Why would people even do this? It's like a random person asking you to bring a package with you on a flight :)
Sounds like he didn't even get any training. Nor had any specific target. Was it really an intelligence agency that sent him? He was bound to get caught like this. Why would they take such a risk?
I wonder if he was perhaps a decoy for a real intelligence op? It sounds like he kept the KGB quite busy.