I'm neither surprised by the results or by the disparity between male and female behaviour. Women, if I remember correctly, tend to be more mindful of rules of all kinds, and less likely to break them. They are also thought to be harder to corrupt (ex: prison guards).
I am really perplexed about what should be done about traffic rules for cohabiting vehicles like bikes and cars. There is obviously a problem, but it's hard for me to think of a simple and reasonable solution.
On a tangentially related note: I really like this blog. http://www.howwedrive.com/ which is full of insight on things like that. I'm sure the study will surface there sooner than later.