To answer some of the questions/comments.
Jeff C, yes cops do look for radars, some more thoroughly then others, it is likely that most would not spot yours, I do not often look to hard but most people have them on the dash or middle of the windshield. Im not sure where your inspection sticker(s) is on your vehicle but an officer looking at that might spot your dectector. Yes that is a good way to get out of a ticket, even better to admit what you were doing wrong not just that you are a dumba** lol. This will not always work as many officers especially state agencies will write you a ticket no matter what. They do not have the power of discretion that other departments have and basically write a ticket for every stop.
RichardL you make a good point that your radar, since it is not visible, will not affect the decision of the officer. I am not here to debate the legally of radar dectectors we all know that they are legal. I just wanted to give my opinion and make a truthful statement that many officers factor the presence of a radar dectector into their decision to write or not write a ticket. "If you are going to fast to not slow down in time" is not really an accurate statement since the effectiveness of the radar depends on many factors, a good radar detector will give you early enough warning most of the time so that you could be going any speed and still be able to slow down in time. If your radar prevents a ticket then yes it did its job, If an officer gives you a ticket then he/she did their job, only one makes the highways safer. That is if the giving of the ticket doesn't just prompt you to get a better radar dectector so that the next time you will be able to slow down whenever an officer is around
I disagree with some policies and actions of some officers and departments as much as anyone else and I am not saying that I always drive the speed because I dont. To be honest I generally practice a 10mph over the limit rule and do not feel bad about it as I would not write someone a ticket for that speed and in most cases it is not an unsafe speed. Speed limits are set for a reason not just so the cops will have something to stop you for as there are much more important jobs for us to do but the safety of our highways are just part of the job.
I can appreciate someones desire to make sure they are not all of a sudden hit with having to pay a $200 plus speeding ticket but in general I feel that having a radar dectector prompts people to travel faster especially once they have had it for a while and have tested its effectiveness. This is not true of all people. This entry is getting way to long and I have reports to write.
PS everyone with an ST gets a warning, just kidding.