A restaurant owner in Tucson has banned lawmakers from his pizzeria in response to passage of a bill that opponents say would allow businesses to discriminate against gays.

The measure, which states that individuals and businesses can refuse service based on their religious beliefs, cleared the Senate on Wednesday and the House the following day.

“We reserve the right to refuse service to Arizona legislators,” the sign on Rocco's Little Chicago Pizzeria reads.

“A customer posted the sign to my Facebook feed, so I printed it up and laminated it,” owner Anthony Rocco DiGrazia told The Huffington Post. “The response has been overwhelming and almost all positive from across the globe. I just want to serve dinner and own and work in a place I'm proud of. Opening the door to government-sanctioned discrimination, regardless of why, is a huge step in the wrong direction.”

Appearing on CNN Newsroom, House Minority Leader Chad Campbell, a Democrat, stated that the bill was a response to laws passed in Phoenix, Tucson and Flagstaff which prohibit discrimination based on sexual orientation and gender identity.

Roughly 300 people rallied Friday in Phoenix against the bill. The demonstrators called on Republican Governor Jan Brewer to veto the measure. Brewer has said she will decide whether to sign the bill next week.

(Related: Hundreds rally against Arizona bill allowing businesses to discriminate against gays.)