I looked around on google maps for a bit and the only thing I found that looked like a store I could spend a few hours and a bushel of money in was Woodcraft. The problem is, it's a 2 hr drive. Plus, we have stores like that near where I am, so I probably wouldn't drive that far. Not sure if you have stores like that near you and if you would be seeing anything special that would warrant a 2 hr drive.
Your best bet is probably wait until you get there and ask locals if there's any hidden gem stores that don't pop up in a general google maps search.
Google Maps
If I'm not mistaken, @Reedt2000 is in Jersey and might know of a place worth checking out(?)
Philadelphia Luthier supply is 2.5 hrs away in Philly, but I'm not sure if they have an actual walk-in store, or if it's just a storage building that they ship from. Again, more of a thing to do if you have a whole day to yourself to just take a drive. Probably not ideal to drag the family along.
But there's gotta be SOMEthing closer.