Guion will not be prosecuted, and there will be no criminal record stemming from his Feb. 3 arrest in his hometown of Starke, Florida, according to a source familiar with the case.
"It’s over," the source said.
Guion was pulled over for erratic driving and police found 357 grams of marijuana and an unloaded gun (which was registered to Guion in Minnesota) in his 2015 Dodge Ram truck. Police seized the truck and $190,028.81 in cash that Guion said was from his Packers paychecks.
A spokesman for the Starke, Florida, police department confirmed Guion reached a plea deal Tuesday that included a $5,000 fine plus court costs, and as a first-time offender the charges were dismissed without adjudication of guilt.
"Hopefully he learned from his mistake and can continue his NFL career," captain Barry K. Warren, public information officer for the Starke, Florida, police department, told ESPN.com Tuesday.
The Bradford County (Fla.) Clerk of Courts said it did not have the finalized record of Tuesday's proceedings yet.
The civil forfeiture case, in which Guion is attempting to get back his vehicle and cash, is still pending.
The Packers have expressed an interest in re-signing Guion, who started every game last season at defensive tackle. However, now that his legal case has been resolved, interest from other teams could increase.
"I stand by what I said during the season, after the season," Packers coach Mike McCarthy said last month at the NFL scouting combine. "I thought he was an impactful personality and played good football. I'm hopeful that we get past this, and the monitoring gives us the green light to go forward, but I'd love to have Letroy back."