It’s not the Wells Fargo Wagon coming into town, more the Brett Favre-Go! Wagon.

And, suspiciously, it had Illinois plates.

Ignore that detail, says Tony Mars, founder of SaveBrett.Net. He and his buddy Adam Chartier grew up Packer fans in the twin cities of Marinette and Menominee. And they bleed Green and Gold.

Mars graduated from UW-Madison, but has moved his tech business to Chicago, hence the Land of Lincoln plates.

The two Packer fans started their Save Brett tour in Escanaba, Mich, on July 15, and made it as far as Madison six days later, having collected 4,500 “Save Brett” signatures.

Mars and his entourage wore number 4 jerseys as they collected signatures on the Capitol Square. Mars says Packer fans shouldn’t be deterred by Favre’s on-again, off-again desire to play.

“He’s a regular guy, he doesn’t have 10 people to comb his hair before his press conference,’’ Mars said. “What we get is his honesty. When he’s burnt out at the end of the season, and says he doesn’t want to play, we get that. We get his honesty. It’s his greatest fault.”

The “Save Brett Tour Bus” plans to finish up hitting Milwaukee, and Chicago, where Mars assures us there are plenty of Packer fans.

Letting Favre leave Green Bay could put a curse on the Packers practically forever.

“If Babe Ruth had wanted to come back to the Yankees after he retired, do you think they would have told him he had to sit on the bench?’’ Mars said, direly recalling the “Curse of the Bambino,’’ the pennant-less decades that befell Boston after the Red Sox traded Ruth to the Yankees.