Oh yeah, I noticed that. I'll need to fix that soon. There's a lot of other NMPs in Idaho, some of which result in broken concurrencies. I noticed that the I-84BL in Mountain Home has NMPs where both ends meet I-84. Same with the I-15BLs for Blackfoot, Pocatello, Inkom, and McCammon. The I-90 BL in Wallace as well as the one for Osburn both have NMPs at their eastern ends, too. Also, the I-15 BL in Idaho Falls has an NMP at its northern end. Oh, and I created one when I added the Sandpoint bypass and adjusted the lat/lon coordinates for US 95 and ID 200, but I seem to have forgotten to do so for US 2, thus breaking the concurrency there too. Finally, there's an NMP where I-184 and I-84 meet, as well as one at Exit 61 for I-86 where it crosses US 91. Yeah, that's a lot...
EDIT: Another one is at the west end of the I-84 BLs of Glenn's Ferry and Hammett (and also the eastern terminus of ID 78).