Random thoughts...
Short of flagship stores in NYC and of course B&H Photo, there are no regular Apple Stores I've ever visited in NY state that have any idea what a Mac Pro is (be that 5,1 Cheesegrater or trashcan). I'm pretty sure that dragging current heavy metal sculpture to Genius Bar will produce head-scratching, and confusion as to whether or not they actually made this thing. "Oh hey, there it is on the web site, it sure looks like an Apple product."
The only place I've ever had positive experiences with is certified Mac Repair place targeted at business customers where the owner and half the employees all personally use Mac Pros, <3 them, and understand what they are. If you bring a flashed 4,1 running modded video card and OpenCore, they will get what that all means and resolve problems rather than cause new ones -- they will also show up at your office or house and do work there (I did not find using special secret connects; found via Apple Mac Pro customer support connecting me to them many years ago). My faith that any normal Apple Store will do anything useful with Mac Pro is roughly 0.
Other than all that, ya know, there's that Coronavirus apocalypse thing happening in NY, parts of Cali, Seattle/Vancouver right now. There's a high possibility they're about to shut down all of NYC, no traffic in or out, as per 9/11. None of this may have affected middle America yet, but ... it's coming. Not zombie apocalypse, but US healthcare system is about to burst at the seams.
On the flipside, from a personal/experiential level: Shanghai has been back online and shipping molecules as of last Thursday. Distributors there indicate it's basically over and done with; living in aftermath, back to business as usual. IDK if same applies to tech, but I suspect yes.
The entire US is about to get very strange for a few weeks/months. Hope your computer(s) don't need service, because right now, best of luck with that on any model, nevermind new Mac Pro. Also, hello recession. Bummer.