Bike drills without trainer/stationary bike

My training plan calls for bicycle drills (single leg drills) and says this should only be done on a trainer/stationary bike. Unfortunately, I don't have a trainer or access to a quality stationary bike (I kick myself every day for not buying a trainer and putting it in our shipment, but what's done is done).

So, my long winded question is this: can drills be done if you're riding in a relatively safe, secluded portion of road. For example, on the 1 mile loop inside my housing complex, where there is not a lot of traffic during the day - most of which drives in the middle of the road anyways.

Am I nuts? Is the necessity for stationary riding because of the balance needed for single leg drills? I can't imagine waiting until June to start doing bicycle drills is really a good option either.

Thoughts, suggestions, figure it out and shop whining?!?