Has anyone recently shipped and batteries for mods (aw imr 18350 is what I am sending) via USPS Priority Mail and said no when they ask about the batteries being in their package? I was half asleep and packed up the package the night before and said no when they asked (forgot they were in there till I got home and saw the list of what needed to be mailed out) I'm wondering am I fine or should I call my Post Office and tell them there are batteries in the package?