I agree as there seem to be a lot of construction directional illuminated signs with K band in some states. Other states monitor traffic speed with K band, or even laser here on the new tollways. The beauty of the GPS radar detectors is to record the regular false alerts and not deal with them again. Wonder how big that memory is as I have quite a collection of them now.
The Max has a setting to allow for auto collection of false alerts, and a setting for no alert below a certain speed (parking lots and door openers).
If I mute an alert for one band, if another band comes alive in the same area I will get a new alert.
It's all part of the cat & mouse game. Mostly for fun as in congested cities, like Dallas, driving the 70 mph speed limit on freeways is frustrated by traffic.