Both Federal Way and King County will sit in parking lot of Church of Christ at 300th on east side of Military Rd S. Have seen this all times of the day but usually in afternoon to early evening times, usually toward end of month. You won’t see them until it’s too late, sometimes two cars sit side by side, Federal Way cars are blue, King County are white. Watch speed by here both north and southbound, easy to speed over 40 mph limit but not worth the ticket!
They also like to sit in parking lot across from Safeway and in Safeway parking lot on 288th and Military-like to catch speeders after or before they cross through intersection south/northbound on Military Road S. You won’t see them until it’s too late if you aren’t checking peripherally and are just concentrating on making the light.