No need. His tour guide was waiting outside the vehicle.
"Brian Ferentz was there to greet me," the 6-foot-2, 278-pound Gressel said. "We stepped out of the car and boom, there he is. That was a great first impression, obviously."
Gressel hails from Centerville (OH) High. Ferentz recruits that area for the Hawkeyes.
Scout.com rates Gressel as a three-star recruit on its five-star scale. He's listed by the service as the nation's 49th-best defensive tackle in the 2013 Classes.
Right now, three schools are standing out to Gressel.
"I liked Iowa before my visit and my visit confirmed how much I liked it," he said. "I like Cincinnati a lot just because it's kind of a home-town team. I also like Northwestern. My good friend, Ifeadi Odenigbo, decided to go there and he's told me a lot of good things about them. They'd be up there. They're coming into my high school next week."
Other schools also are recruiting Gressel.
"Wisconsin, Michigan State and Penn State all are showing interest," he said. "They're in different phases of the recruiting process. They all want me to go to their camp to show what I have in person. I haven't sat down with my parents and talked about that. When I do, I'll know better of I'm going to go to those camps or not."
Camping could conflict with Gressel's timeline for a decision.
"Probably sooner rather than later just because I know spots fill up at different schools," he said. "You need to make a decision if that school is among your top schools. I was thinking mid-to-late June and at the beginning of July the latest."
Gressel called his visit to Iowa "Great." He saw the Hawkeyes scrimmage for two quarters.
"It was almost identical to my high school football team," Gressel said. "That's how we pride ourselves. It's just kind of come-at-you football. That's the way football should be played. I could definitely see myself playing there."
Gressel said he fits the Iowa mold.
"They like guys that may seem undersized," he said. "Maybe not undersized, but guys that Ohio State and Wisconsin won't take because they're not as tall. Iowa prides itself on taking good football players at any size."
Gressel began his junior season playing center. Then, he received an opportunity to work at defensive tackle.
"One of our D-lineman got mono so they threw me in there," Gressel said. "I kind of just stayed there."
Gressel hopes to major in engineering. He likes what he sees at Iowa in that field.
"Part of my visit was getting to sit down with the engineering department," Gressel said. "(The Iowa coaches) didn't make me feel like it can't be done. They've had players in engineering.
"Obviously, it's hard. But people have done it and they didn't discourage them from doing it. They said the engineering department works well with all athletes to get you where you need to be. I like that. I have been some other places and frankly they were like, "Well, good luck with that." I really liked the feel they gave me at Iowa."