If they think an 11mph cushion is safe, why not increase the speed limit by 10 mph?
The speed limit is 60mph in this section, would it be ok if they gave tickets at 69mph? How about 65mph? Why not 61mph? All examples are breaking the law.
If they raised the speed limit to 70mph would you be ok giving tickets at 71mph? 75mph? 81mph?
If you're comfortable with them giving tickets at 11mph over, than you should be fine with 1mph over as well. Maybe we could put devices on cars that won't allow you to exceed the speed limit?
Also, if it's all about safety how about they donate the proceeds to charity. I assume this also reduces the amount of work for police, so would the police department be ok with a reduction in staff since this is doing their work?
No offense, but you may want to look at Pride's objections to speed cameras on this thread...and maybe run with those as your reasoning in the future.
What you've listed here is a hot mess that just comes off as someone who like to speed and doesn't want it to be any easier to get caught.