Having walked to work on Monday and discovering how inefficient feet can be, I arrived to learn that a compromise has been reached.
We're still not allowed to put bikes in the boiler room but can put up to three or four in the staff room, providing they're not blocking the fire escape, sink, dishwasher, fridge or fire extinguisher... if there's no more room in the staff room, additional bikes will have to be locked to the Sheffield stands outside the store, but can be brought back inside when the store closes.
Still makes more sense to use the boiler room since there's not much to block up... unlike the staff room. This probably isn't over.