MEDLEY, Fla. -

Jorge Hernandez is one of many potential South Florida victims that received a legal-looking citation saying they had not paid their highway tolls.

"I don't know what is going on," Hernandez said.

USAbox.com is the address on those phony citations where people were told to send their money orders. It turns out that address is nothing more than a P.O. Box.

The manager of the P.O. Box, Carlos Dominguez, said they're having people come by every day to address the issue.

"Maybe from five to 10 people a day, I would say," Dominguez said.

Professional painter Idalberto Jimenez said he rushed to the Medley business because he sent a $50 check Tuesday hoping to avoid $500 in fines and a suspended license. He said he woke up Wednesday morning and thought there was something fishy about it all.

Neil Signer got one in the mail and almost fell for it.

"It is very impressive. It looks like anything you would get for a traffic ticket or something," Signer said.

The Florida Department of Transportation is aware of the scam and has posted a fraud alert. Meanwhile, the manager of the corporate P.O. Box business said he did not forward any of the 30 checks he received and the scammer has not picked any up.

U.S. Postal Service inspectors are investigating the flagrant fraud.

"We keep logs of everything, so there is the I.P. (address) where the person opened the account (and) the credit card he used," Dominguez said. "So there is a bunch of information the police might follow."