I know what you mean, the simple answer to that: you can't run away from the government. But if you talk about insignificant amount of money then it does not matter much.
Of course he can, he will perform his transaction in a clan way without the government tracing it to cryptocurrency, but hard cash will surely be involved, it is now left to him to explain to the bank when depositing how he got the cash if the amount is very significant for them to query.
All he needs to do is just involve a local exchanger, they will do all the dirty work for him, and then get him his cash once they get their own BTC. After all, government cannot even trace anything that is being done through the blockchain transaction, and since he will be depositing cash by hand, no one will be able to trace it too with that.