I never put my GPA on any resume. I had a garbage GPA because the only classes I went to were CS classes so I got horrible grades in all my required electives. I was worried someone would ask and no one did.
He stammered a bit, apologizing, and then hung up on me. I've always considered that dodging a bullet. It's a weird thing to ask someone with many years of professional experience. The only thing I could infer was that all of their staff were very young, and this was still relevant to them.
But then, every organization has it's quirks.