Eh. It seems like just about everyone is making t-shirts nowadays. Not that I'm opposed, but the quality of some just isn't cutting it. I mean, mediocre clip art/vector drawings and some awkwardly placed quote or phrase with typefaces which don't compliment the image are all too common.
I'm banking on the chance that the owner is OCD. I've known several people who are weird about times like that. One, for instance, could only meet you at times where the numbers added up to 15 (ie 3:39). That's definitely what it looks like to me.
I believe that this was the inspiration for a Pete and Pete episode, at least part of one. There was a phone that had been ringing for decades on the outskirts of town, but everyone was too afraid to answer it (until one day...).
I worked as a camp counselor last summer in Middletown, New York. Our milk came from Yasgur's Farm, and on the side of the cartons they had ads for tie-dyed shirts. I thought it was pretty funny, to be a dairy farm that sold tie-dyed shirts. They included a little of the history, so I knew there was a reason behind the shirts, but still...
Mhmm.
http://www.dwyeraerialphotography.com/images/fort.jpg