Purchased an aluminum fence and the measurements on merchandise invoice is different than actual fence which puts it above code regulations

I purchased and had installed an aluminum fence from Home Depot under the assumption the measurements were 4 ft x 6 ft, which in actuality the fence is 54 in. x 6 ft which puts the height over code regulations in my town by 6 inches. The merchandise invoice clearly states that the fence is 4 ft by 6 ft which i specifically asked the store employee and he said the poles made up the difference the actual size is on the invoice. Can I hold Home Depot responsible for the sal,e of the fence and subdequent violations of regulations?