Police were summoned this week to settle a dispute between Lindsay Lohan’s mother, Dina, and a Carvel ice cream store, said While picking up a birthday cake at one of the chain’s Long Island, N.Y., stores, Dina produced a VIP card Carvel had issued to celebrities, entitling them to free ice cream. But a store clerk said that neither Lindsay nor her sister Ali (who also has a card) were present, and refused to hand over the cake. An irate Dina summoned the cops, who sided with the clerk. Said Dina: “It just shows how we [Lohans] get treated worse than regular people.”