The combination of wages & tips must be at LEAST minimum wage. But, the only part of the check is the wages, with a subtraction for taxes that cover both wages & tips. Depending on how much a server makes versus the amount of tips collected, a server could actually have a very small check. Remember they are pocketing the tips as they go, if not zero. It is possible that they do not have enough left of their check to withhold all their social security & medicare taxes. They then pay those when they file their taxes.
Is daddy dearest a server?