Could use nearby/changing bluetooth devices as a measure of how crowded/busy a place is. A place with a low number of strong signals could recharge the battery if you stayed there for a minimum amount of time.
My fear isn't indirect censorship, it is that companies will rather pull out of the Canadian market than pay to have content developed, acquired or managed to meet the CanCon rules. Canada's current spat with Google over news is a recent example.