FireDodge

So I haven't had to post in a while, my '14 has been treating me well. Until Friday.....stopped to fill up on fuel (was at 1/2 tank) got back in the truck to find the fuel gauge was still set at 1/2. Not believing the gauge or sender could be having an issue ALREADY, I blamed the pump, swiped my card, and sure enough she was full to the top. I am under warranty but didn't know if there has been a known issue with this. Taking the truck in for warranty will be an all day circus event for me. I can't seem to find if there is a gauge check for the 14 that anybody has figured out yet. Can't do the same thing I did with my '06 to check the gauges. Any help before I run this thing to the dealer would be wonderful. Thanks