If you have an Iphone you can get a Quilters Club of America app that will give you a list of the quilt shops in the area you are in. I would suggest you call the shop before you drive to it to make sure they are still in business and the hours that are listed are still in effect.
When I shop while traveling I just wander in and look. Sometimes a fabric or tool catches my eye. If so, I buy it. I tend to like fat quarter bundles because I do a lot of applique. Of course, there are also those jelly rolls and charm packs.