In article 70,
Adrian wrote:

I think you miss his point.

The problem isn't a question of "Will people _have_ to touch out?" but more
one of "Will people _think_ they still need to touch out, and try, causing
chaos?"

I saw a similar "unintended consequences" type problem the other week in a
section of motorway that had been reduced to one lane with a 50mph limit
enforced by SPECS cameras. There was a police car with the blue lights and
siren going, and it was stuck at 50mph because nobody in front of it was
willing to get a speeding ticket.