For refusing the Pbt as is Wisconsin's policy. The preliminary breathalyzer test or pbt is not the test that would be used as evidence in court. It is used to determine probable cause for an arrest, which would lead to testing either with a more advanced and certified breathalyzer or a blood test.
If you have a report showing that Romo continued to refuse the official intoxication test after his arrest and having been informed of the implied consent laws then I'd love to see it.
He himself stated on camera that he would "do that" in reference to the officer telling him he had the right to choose his own facility to have blood drawn at his own expense.
A quick google search listing the four citations he received is only a fraction of the story and does not speak to what happened after he refused the pbt and whether a warrant needed to be issued after he seemingly agreed to the blood test on camera. If you can point to something that clarifies all that please do. As of now we just don't know.