Hmmm. There is more then one feed-rite located close to you, there is another feed rite located at the local stock yards, and they have carried rice bran in the past.
Also the rice bran oil is AMAZING!! However its very pricey....but it may be worth it seeing you have explored many other options.
I also agree w peggy sue...make your feed up into baggies, w a permanent marker write the day, and whether it am or pm feeding...and they should be able to handle that.