5 miles away? You go, girl!
Seriously, whether you go alone or with DH or with someone else, what do you have to lose? I found that my DH actually enjoyed quilt shows to some extent, and if he got bored he always had a book along to read. If you go with a friend and she wants to see things at a different pace, you can always do things her way and maybe get something different and good out of the experience. If not, it's only 5 miles away - go back and do it your way. If you go alone you will be surprised at how many friends you'll make at the venue. Quilters are always ready to talk to other quilters. Go and have fun!