According to the terms on the back:
1. Must be a resident of VA and over 21 years of age.
2. Beer purchase is NOT required, and in fact can't be used towards your $100 minimum.
3. You can use multiple receipts for purchases between 6/26/2011 and 7/31/2011.
4. Postmark required by 8/15/2011
I wouldn't make a special trip out since there's no guarentee the tearpads will be available, but if you are there make sure to check it out!
Oftentimes, these rebates are not specific to any store, so if you shop at someplace other than Kroger, you might want to take a look and see if you can locate them in your favorite grocery store.