>> perhaps sensing something fishy, the smooth-talking john speeds off before officers can stop him. >> i don't think we will be able to catch that vehicle. he's gone. unless one of the black and whites are out on trop, you can disregard. >> the decoy hits the trap. >> batteries changed out and uc is back out. she is work walking northbound on the east side. >> within a matter of seconds, an older man in a gray suv waves the decoy over. >> 40 for what you want. 40 will get you sex. >> she is talking to a guy in a silver denali. >> do you copy? >> nice to meet you, howard. >> uc room, do you copy, chavez leon. >> reporter: as the undercover officer and her senior citizen date make their way to the room, detective charlie has trouble