already a big red note about how many seconds still in order to back to the store otherwise you will fail in robbing will be shown above robbing time remaining isn't enough I think sound system is not needed for now, Neutral
as you all know nowadays most newbies leave the store area by fail while robbing and ask why he didn't get his full reward even old Criminals have trouble with that since there is no warning sound so they keep walking and thinking they are in the Store area, I don't know why there is no a Warning sound in Stores while leaving like in AR's.AR warning sound when u are trying to leave without completing the robbery: https://streamable.com/qdioj5Store when u are trying to leave without completing the robbery https://streamable.com/oma3np