Shut Those Shop Doors !
Most shops seem to leave all their lights on whether they're needed or not, as well as trying to heat or cool the entire High Street because they leave their doors wide open in all weathers. Smart meters won't make a jot of difference here, it's their customers that have to foot the increased energy bills.
It would cost virtually nothing to pass a simple law banning heating or cooling of retail premises when the doors are left open. That would save far more energy than smart meters ever will.