I figured out that the ticket numbers on the tickets on the Johnston's Family Diner website are times expressed in epoch seconds (see here for explanation: webnet77.net/cgi-bin/helpers/epoch.pl), and the times exact match the conventional dates and times underneath. Also, by looking at the page's source code I could see that the page itself was created in September 2015. If this is a clue to the CustardQuest, it came 2+ years after it was released.
There’s a problem with the converted times. Using the epoch to human readable date conversion tool, the converted date is given as GMT and it is this Greenwich Mean Time shown on the tickets, not local time. To convert to DST on the east coast it would be GMT – 4 hours therefore the calculation would be:
1443374268 ==> Sunday, September 27, 2015 5:17:48 PM GMT ==> Sunday, September 27, 2015 1:17:48 PM GMT-04:00 DST
This presents a problem as the restaurant hours are from 4:00 to 9:00 (AM or PM doesn't matter) therefore I think the restaurant is probably located in Reykjavik.
"It is not down on any map; true places never are." ~ Melville
Why would the website be the very first google search option, if it wasn't real, and just some project? I think it definitely fits the solve, and i think the solve is in ohio. I still need to put it together some more, but I really appreciate everyone's notes here!