Not so sure that's correct... The oil warning light is for mainly pressure I thought and some do level but I could be wrong, others will know. The light shouldn't come on at all if its between the mark otherwise I would be getting it all the time due to the FSI's appetite for lube and throwing it out the back.
What car is it exactly?
Are you sure it wasn't pressure related? I would get this scanned sharpish as it could need the sump pickup needing to be looked at and use VCDS to check oil pressure related codes.