Signs I've seen along the I-5 in the Puget Sound area that are, as yet, not the name of bands, but perhaps should be:
Apple maggot quarantine area
Litter and it will hurt*
*for an emo band, I think.
Signs I've seen on other interstates that might make good band names:
"Baptist Pumpkin Center"
What about the signs where ya'll live? Anyone care to share