[hunter2_]

Off topic: I think the OTOH idiom is for weighing opposing facts. You aren't doing that here: the lack of store refrigeration and the room temp purchase are equivalent. Being mentioned is the opposite, but that was in a distant clause.

I won't say the usage is definitely wrong (being English, after all), but it struck me as interesting.

[kqr]

I put the blame squarely on my lack of patience for editing on the phone. You're right, of course. I started writing one thing and then changed my mind partway through the sentence.