How to handle hyper patient White buildups against the French Rubenstein defense?

 Austrian chess player obt(apparently this stands for obituary which places him in the company of the infamous attacking ICC player Widowmaker), playing blitz at the Internet Chess Club, was in a prophylactic mood when he played the square weakening f3 pawn move with the White pieces. The square he fatally weakened was the e3 square. 

It was his reaction to a tepid system advocated by Rubenstein in the French Defense. The move f3, ostensibly, blunts Black slowly developed fianchettoed Bishop at b7. The move is a lemon as it denies the White Horse the natural and superior f3 square. Obt's plan was to place his horse on e4 hoping that Black would cooperate by capturing leaving White with the sought after pawn duo d4,e4. 

Author Hannes Langrock writes about this "solid defense"  to 1. e4, but his book does not address the very slow buildups that the first player has against this Black defense that cedes pawn control in the center.  So Ich habe eine frage. What does Black do about the almost Zugzwang positions that occur when White plays ultra patiently? Thank you in advance for your well informed and erudite response. Auf wiedersehen!