Sonic Drive-In TV Commercial, 'Investigation Discovery: Stakeout'

This couple is on a stakeout ... or at least they are pretending to be. They think they see what they are looking out for, but when someone knocks on the car window it surprises them. The amateur sleuths roll down the window for the Sonic Drive-In waitress who passes their slush and shake through to them. During its current promotion, customers can get half-price shakes and ice cream slushes after 8 p.m.