Took a trip from Los Angeles to Lake Havasu, AZ over the weekend. On the way back driving on I-40 I had 3 or 4 Ka alerts. They started slow 1 or 2 bars then ramped up to 5 to 7. They lasted a few second and then stopped. I was I "A" mode, nothing out there except weeds, sand, and snakes! None of the alerts ever J'd out and no LEOs in sight. Any idea what I was getting. All came from the front.