i figured it out, so i thought i'd tell you guy how in case you have this issue too.
type
boolprop testingcheatsenabled true into the cheat box
type
changeLotZoning residential into the cheat box
then click on the mailbox and you should get something like cancel,reset,or delete
hit reset and the mailbox will become a regular house mailbox
then shift-click on it and go to
house...teleport here while you have the person in the car selected
then you will get the cancel, reset, or delete again and click reset
you should be able to place a driveway now so do that
now the car will enter the driveway and then delete the car and drivway
type
changeLotZoning apartmentsublot into the cheat box
now click the mailbox again and hit reset and it should be back to normal
hope this helps
