Parking Brake Warning Buzzer?
 

Sometimes my dad forgets to disengage handbrake for probably less than a kilometre, is there some type of device to be installed to produce annoying tone or in such related matter. A little redicon does not have much of a warning.

y not just adjust the handbrake a bit more so its tighter that way your dad will know something is up.
Or you can always buy those buzzers from canadian tire that buzz if ur headlight is on and modify it to work for the handbrake.