Because you can't take the fridge with you on a false trail, place the phone inside at some point before deviating to the true meeting point, and then pull it b

Because you can't take the fridge with you on a false trail, place the phone inside at some point before deviating to the true meeting point, and then pull it back out again once the meeting has been completed and sufficient distance has been traveled. Even some sort of electromagnetic shielding case or bag wouldn't be as convenient (so more likely to be used) or informative.