But before this week, only South Dakota and South Dakota State had offered the three-star.
Finally, on Monday, his first FBS offer came in, much to his relief.
"I got offered by Hawaii," said Arnold. "I'm real excited. Hawaii is a nice offer."
A host of schools stopped by Crespi on Monday, with several more there to see Arnold and teammate Tyler Foreman, another three-star safety.
Arnold is hopeful a few more specific schools get involved.
Arnold, who's played with 1925 this spring, said a few schools in particular could be close.
"Hopefully, Washington, Oregon and Oklahoma are the next offers," said Arnold.