Establishing shot of Buy More is bright sunlight when Lester picks up the phone. Ellie calls about the computer freeze and her windows show night outside.
Sarah engages in hand-to-hand combat inside of a parked car. She hits the steering wheel progressively harder in order to set off the airbag. Nothing can be hit inside a vehicle to set off an airbag.
Sarah mentions the plan to place a GLG-20 bug near Jason, Anna Wu's new boyfriend. However, "Chuck vs. the Marlin" established that GLG-20's were used by Fulcrum, not the CIA. EM-50's (a reference to the movie "Stripes") are the preferred bug of choice for the CIA/NSA.