Is this real?

Snopes approved.
I locked my car --- as I walked away I heard my car door
unlock I went back and locked my car again three times. I looked around and
there were two guys sitting in a car in the fire lane next to the store. When
I looked straight at them they did not unlock my car again.
How to lock your car safely
While traveling my son stopped at a roadside park. He came
out to his car less than 4-5 minutes later and found someone had gotten into
his car, and stolen his cell phone, laptop computer, GPS navigator name it ... called the police and since there were no signs
of his car being broke n int o- the police told him that there is a device
that robbers are using now to clone your security code when you lock your
doors on your car using your key-chain locking device.. Th ey sit a distance
away and watch for their next victim. They know you are going inside of the
store, restaurant, or bathroom and have a few minutes to steal and run. The
police officer said be sure to manually lock your car door-by hitting
the lock button inside the car, that way if there is someone sitting in a
parking lot watching for their next victim it will not be you. When you hit
the lock button on your car upon does not send the security
code, but if you walk away and use the door lock on your key chain- it sends
the code through the airwaves where it can be stolen, something totally new
to us...and real ... be aware of this and please pass this note on..look how
many times we all lock our doors with our keys...just to be sure we
remembered to lock them....and bingo someone have our code...and whatever was
in the car...can be gone.
Keep safe everyone