He also broke a few of the basic rules of ASL signing.
Viewers knew immediately he wasn't a professional since he was wearing a bright yellow t-shirt.
Trained ASL interpreters always wear blue, black or a color where their hands will stand out.
Greene also kept turning to look at the speaker, which is another telltale sign of an unqualified interpreter.
Charlene McCarthy, the founder of VisCom sign language interpretation service agency, said she wished the county would have called her.
She told the station: "It was horribly unnerving for me."
"To watch that, knowing I could provide a qualified, certified interpreter."
Marlee Matlin, a deaf actress, tweeted: "This is outrageous."
She followed up: "To Deaf residents of Manatee County. Here's info on evacuation that you need to follow."
"Comments like 'give the guy a break, he's trying' or 'what other choice do they have?' Um, how about CAPTIONS? It's life and death after all"
Model Nyle DiMarco, who is also deaf, tweeted: "We cant afford mistakes that can cost 200,000 deaf lives in Florida FYI @MCGPublicSafety the 'interpreter' is not able to convey vital info."
The deaf community in Manatee County has asked for an apology.