N.J. Stat. Ann. § 17:16C-61.3

The Legislature hereby finds and declares that the consumer is frequently induced to enter into retail installment sales contracts for goods which he does not need through the unsolicited and often unethical persuasion of certain door-to-door sellers. It is the purpose of this act to enable the consumer to reconsider his purchase within a reasonable period of time and to rescind the sale if he acts before 5 p.m. of the third business day following the day on which the contract is executed.