Talk to a lawyer about it. In 1997 My brothers and I had resident tags in Montana, but were going to a private college in Utah. A MT game warden found out about it, called us down to his office, confiscated our tags, and gave us a "courtesy citation" (a strong warning). We were devastated. My little brother is now a lawyer in Montana and has studied that law (specific to MT and our situation). The game warden was legally wrong in taking our tags. My brother spoke with the District Attorney (who prosecutes for the Fish and Game) and he agreed that although we were living primarily out of state, we were still considered legal residents of MT and could legally buy tags.
Your situation is a little different. Based on my experience, I would check with a lawyer and the Fish and Game both before buying any tags.
By the way, I did have another brother who illegally bought resident tags one time and got caught. He was fined $900 and lost his hunting priviledges in 4-5 western states for 18 months. I felt bad for him, but he got what he deserved.