Life's like that

My wife and I eat out most of the time. We decided that it was more practical and cost effective. On one of those occasions, we were both exceptionally worn-out from the day's work. Wes stopped at our usual place for dinner. After an hearty meal, we paid-up and went to our car. Surprisingly, the car-lock system did not respond to my remote. The more I tried, the more frustated I became and I started knocking the remote against the car window hoping that it would miraculously unlock. In the midst of this furious knocking(..and cursing), my wife nudged me saying that there was a familiar beep each time I pressed on the remote...only that it sounded as if it was coming from elsewhere. Only then, did we realise to our utter embarassment that the sound was indeed coming from OUR car parked a few metres away. Without a word, we got into our car and drove away into the night..