Another thing you could do is simply follow the posted speed limits, instead of using technology to evade law enforcement. It's very relaxing!
Speed trap notification are for more than just evading law enforcement. It lets you know that there's going to be a slow down because a lot of people who see cops instinctively tap the break and that has a domino effect. So if you're coming up the hill and you don't see the traffic yet, you can still be prepared.
No need to get on a soapbox.