It's interesting isnt it? The fact that so many people abuse this one way system suggests it's a road that is needed. Rather than arguing for cameras, perhaps you should be campaigning for it to be reinstated as a two way steet! MM is not an exceptionally narrow road and should be able to cater for both parked cars and traffic. Traffic slowing measures and those painted dotted lines on pavements for parking (if that's not already in place) should do the trick.