Data point -
VR purchase success at Walgreens (Denver area).
Last store I tried didn't allow cc's. Today, I was told I couldn't use a CC. Asked if I could use a debit card. Clerk then went to ask store manager who in turn asked me if I'd tried using my CC. On being told I hadn't, he asked me to try it anyway.
Worked
Went back and picked up another for good measure.