In Middletown, NY, there is
this overhead BGS on N Galleria Dr approaching NY-211. Here, NY-17 is upgraded to an eastern version of I-17 (they jumped the gun on the interstate designation and got the number wrong), and two new suffixed US Routes are added: US-211E and US-211W.
This assembly in Brewster, NY, features US-202 being downgraded to NY-202, one of the countless examples of this happening, so much so that these US-202 mistakes could be in their own thread.
At
the intersection of US-44, US-209, and NY-55 in Kerhonkson, there are 4 erroneous NY-44 shields and an erroneous NY-209 shield. Then there is also
this assembly at the western terminus of NY-299, featuring a US-44 and a NY-44 shield side by side.
I am sure there are countless other examples nearby, but living in Region 8 has partially desensitized me to these sorts of errors.