Yes, this is another option that I am carefully considering. I have about 3 hours. I did a run through of all the local supermarkets in a 3 mile radius and I have turned up nothing. At this point, I'm tired of walking to all those stores. I'm going to cook some grub, open a can of coke and relax for a bit. Then, I'll think of the next step.
This is probably a long shot because it's Sunday, but maybe you can call the manufacturer and ask them which retailers their product is available.