Definitely fits here, IMO. Classifying truck drivers based on the cargo they're hauling is kind of crazy (unless the company has its own freight division).
Also, is it poor form to post both here and ...
If it fits both, then post to both. Most UIs will roll up crossposts now, and usually only one is shown directly in the feed. That said, at least in my opinion, posting to two communities back to back is plenty. Any more, and it starts to feel a bit spammy (regardless of whether they're rolled up into the crossposts). I'm sure you'll get different answers based on who you ask, but that's my take on it.