Maybe it is a red flag. Now you know a thing, and can decide what to do going forward. If this sort of BS continues, and outweighs other factors, start looking for a new job. I had a VP question a postage stamp, and a tank of gas once, (I bought gas in downtown Chicago, huh, it was expensive). I hid money in expenses elsewhere, kept him happy, and after a promotion, didn't need his influence anymore.
Win the war, not the battle.
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