I will ask that next time, but the answer will be nuanced as I live in SoCal:
"I'm sorry sir, we can sell you seeds but watering them will be problematic as we are experiencing a drought."
Maybe a variety of seeds is available a few months before Thanksgiving to raise a turkey?
Well, you'd definitely be over your watering restriction ration if you tried to grow a turkey... EBMUD would fine you for sure!
You would probably get yourself booted out of the store for having a sense of humor.