Can't train for two months? A lot of prisons have great gyms.
Seriously, what could you be doing that you couldn't spare some time to work out? Some guys are working all day and going to school at night figure out a way to get a work out in. Larry Scott was working all day and going to school at night when he won the Olympia. I have the interview. He said he seemed to have better workouts when he had super busy days.
I wake up at 3:50Am and drive to work 100 miles away in dense NJ traffic. I work a 10 hour day and when I get home late I hit the gym. No excuses. If it's a lack of funds then you use your body weight. Chins, dips, pushups, burpees, split lunge jumps, and the hosts of other body weight exercises will get you in true condition unlike many mirror athlete bodybuilders.