I have understood that while the traffic control signs (such as stop or yield signs) in mall parking lots look the same as those on public roads, they are merely guidelines for proper behaviour ...

GREEN STICKERS POPPING UP ON PARKING SIGNS AROUND TOWN ARE CAUSING PARKERS CONFUSION. THESE ARE NOT FROM THE CITY. THOSE STICKERS MAKE PEOPLE BELIEVE IF YOU GET TOWED FROM LOTS LIKE THIS ON ...