I was driving on I5 in the Portland today. As I came a round a curve, I encountered a constant on Ka band alert that started 1.5 miles from the source that slowly ramped up. At 1/2 mile from the KA source the same LEO was using IO laser. The Pro78 handled it very well. I have never encountered this strategy before if it was that. It could he for got to turn off his radar gun while using the laser. No other LEO was in the area at the time.