^ Yes to both, even 'up here' at our higher elevation...
I actually see an occasional BW more often than a BR, though the BWs around our house tend to be infrequent and very small, and usually in a badly done web in a nook or cranny.
Have only seen a few BRs in 14 yrs, but I shake out any shoes/clothing first, esp the stuff in the garage that I use only occasionally, eg different outside shoes/rain stuff, et al.
Anecdotally, a good friend of ours that lived a bit lower down the mtn toward Laurel Ridge CC was bitten by a BR a few years ago and never fully recovered from it. Other complications and declining health led to her demise.
I wouldn't wring hands about spiders, or other insects or snakes: be aware, be careful and be lucky, as the serious critters in western NC are few, and simply defensive.
GL, mD