MIAMI -- A disgruntled customer shot a manager after arguing with a cashier about packets of chili sauce at a Wendy's restaurant drive-through, police said.

Police said the customer got into a verbal dispute with the cashier around 12:20 a.m. Tuesday at the fast-food restaurant at 18181 N.W. 27th Ave.

According to Miami-Dade police, as the customer picked up his meal, he told the cashier he wanted extra chili sauce. When he didn't get the sauce right away, he began arguing with the cashier, said police. The customer then told the cashier he wanted 10 packets of the sauce.

Although the cashier told him restaurant policy prohibits a customer from getting more than three packets, but the female cashier complied.

According to police, the man continued to argue. He was told to pull up so that the manager could speak with him, witnesses said.

"The manager came out to inform him of company policy, and he shot at (the manager) several times," said Mary Walters of the Miami-Dade police.

The manager was struck in the arm and was taken to the Ryder Trauma Center at Jackson Memorial Hospital.

The customer fled in a brown four-door vehicle with a female passenger.