So rather than hit the town with his fellow first- and second-round draft picks in their free time - which Jackson said they had plenty of - he instead spent the majority of time in his hotel room, poring over the portions of his playbook he brought with him.
Considering the Packers weren't installing anything new on offense at that point, Jackson wasn't missing much back in Green Bay. Nevertheless, he wasn't pleased with having to be away, considering he's fighting for the starting running-back job with Vernand Morency.
"I was real frustrated," he recounted Thursday, shortly after taking part in the second of 12 voluntary practices the Packers have scheduled in June. "But, knowing what you got to do, I really didn't care after that. I had to go, so I went, did that. That's done and over with. I'm back out here, I'm happy and I'm just ready to go."
It has been a hectic month or so for Jackson since being drafted in the second round, 63rd overall, by the Packers. He took part in a rookie orientation minicamp the weekend after the draft in early May, and aside from his trip to the West Coast has been in Green Bay most of the rest of the time.
Last week was a rookies-only, four-day series of workouts in the weight room, coupled with classroom work. Now Jackson's in the midst of a crucial stretch of practices that will give him his first taste of what the Packers will be running in the upcoming season.
Read more here from Todd Rosiak's article in today's Milwaukee Journal Sentinel: