I use a fob and it makes it kind of like most 90's cars anymore where you lock it as you walk away.
If I ever put power door locks in the car, hopefully I can set it up to set the alarm and disconnect the battery all at the same time so I can lock it as I get out and not have to lock it as I walk away.
I know the setup I have right now can be triggered to have a delay of some seconds after setting it if the door is open. Not sure on how to set up power locks to do it, I've got many other projects to finish before I even think about that one.