I don't. The system is only an aid. It won't stop the most determined drivers doing things like that.
And you're right again. We are going to need serious retraining if and when such a system is implemented which is why I think it should be done in stages, ie the driver can switch it off at will initially. An EU report on accident prevention measures states that any ISA type of speed limitation could cause frustration and a false sense of security amongst drivers.
All I will say is this : Since speed limiters on large vehicles have been introduced, we haven't had an increasing number of accidents on roads caused by driving on the limiter on unsuitable roads, although exceeding the number of vehicles exceeding the lower limit has increased.