Oil pressure light comes on as I am driving the stop enine light

take it back for a warranty check
could be a spun bearing problem or a simple oil pressure sensor/sender unit
have a oil pressure test done using a mechanical pressure gauge

This problem is caused by a defective oil pressure sending unit on the engine in most cases. The oil pressure sending unit is located on the oil filter adapter housing on the front of the engine. It is hidden a bit behind the front engine mount bracket.

Well, if you say that when he stops the car, but the engine still running (idling) - that "stop engine oil" light comes on, it could mean that the oil pump can no longer maintain the minimum oil pressure to the critical areas of the motor at an idle.
If the light goes out with a higher idle (driving the car) that is a good indication of a worn out motor.
be sure the oil is at the full mark, not below or above the full mark. Make sure the oil and filter are new. The sender units for the oil lights rarely go out - but it is possible.

do you have enough oil??????? if so, it is probably the oil pump.

change the oil with 10W-30 and filter too. Happened to me, too, when I first got it and it was sitting around for a while.

first try and put some oil in it ....if the light went away..than check if you have an oil leak...if yes where?

A bad oil pump would be your worst case, but, My oil pressure gauge drops right down to nothing at idle and goes right back up when I take off. It's like a tachometer. Has been like that for 10 years. Might just be a sensitive sending unit. My old truck had a gauge that would measure 65 lbs pressure with one qt of oil in it! So, the pressure in not necessarily the level. I don't know what to say about the light. Hope this helps.

You may have low oil pressure, It could also be your oil sending unit.

Oil pressure switches a normally located by or near the oil filter on all cars. :-)

The idle may be to low or the motor is just old and a new set of rod bearings is need with an oilpump to bring the pressure back up.