There is a panic button for that.I've seen a few cars with this. There are cars that honk, and then ones with a small blip or bloop type deal.
Cars with a honk can be annoying at times. The small ones are awesome, I could lock my car all day!
P.S. If I were you, I wouldn't invest in a car with a small bleep, just in case you get lost in a big parking lot!