Unlike so many of his fellow campers, at least he knew someone who could give him a preview since freshman running back Casey Turner, who prepped at Ed White High, arrived on campus only a month ago.
Even with the build-up, Johnson was impressed with what he saw, and who he met.
"It's nice. It's one of the better trips I've been on," the 6-foot-3, 275-pound Johnson said. "I like the weight room, and the tools and the equipment they had, and the camera system they had. It's one of the best in the country."
During the camp Johnson, who also camped at Florida and Central Florida, was able to receive instruction from Rutgers offensive line coach Kyle Flood, which enabled him to gain perspective into how his potential position coach interacts with players.
"He was showing me different steps and technique," Johnson said. "He's a pretty cool guy. He has a good sense of humor, but I know at times he can be serious."
After the camp, Johnson met with coach Greg Schiano.
"Coach Schiano was telling me how his team is a family, and I think I could fit in well with those guys," Johnson said. "He only recruits the best guys with the best attitudes, and those who have the will to work, and the will to win."
One of the points the staff made to Johnson was the success offensive lineman enjoy at Rutgers, and how that translate to the NFL.
And when the coaches weren't selling Johnson on Rutgers, Turner was doing his best.
"Casey tells me that the coaches are real cool and they're going to take care of me," Johnson said.
Johnson remains a long ways from deciding on a school, and is not listing any favorites.
"They're close to the top right now. I like the coaches a lot," Johnson said. "I'm going to try and break it down to my top five by the start of my senior season."
However, could Rutgers' decision to offer Johnson in the fall could work in the Scarlet Knights' favor?
"In a way, yes," Johnson said. "They were the first team that recognized my talent. They were the first team that could see me and I wasn't even at my full potential yet."