BEEP BEEP

I am beginning to hate automatic door locks on cars. The locks that respond to a "clicker" on your key ring. Someone on this block has one. They seem to come home about 2 am, and instead of just pushing the lever inside their car, they use the remote to lock it. This wakes me up. Then sometime in the early morning, either they or another neighbor goes to school/work and they use the remote and their car goes beep-beep and wakes me up again. Couldn't we just use the key?