PHILADELPHIA (WPVI) -- A 7-Eleven franchise owner in Bala Cynwyd is defending his decision to use " barnacles " - yellow suction devices placed on windshields - to deter non-customers from parking in his lot, as local officials consider whether the practice is legal.

Several signs now warn drivers outside the convenience store on City Avenue that unauthorized parking could result in a barnacle. The store's owner, MD Rahman, said the measure became necessary after too many people left their cars in his lot while shopping elsewhere.

"So everybody park here and they go for other place for shopping, and then my customer doesn't have space for parking," Rahman said.

READ MORE: Residents say windshield barnacles are predatory, question legality

Rahman told Action News he previously relie

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