a bit off-topic but as a long-time bugnerd and former produce clerk, i always kept an eye out for critters as i worked. in the few instances i found a spider, it was always a local species and probably got into the box in the distribution center or on a truck. i always heard stories about ctenids in banana boxes and i optimistically opened a lot of banana boxes over the years to no avail 
one time a customer brought me a bag of grapes with a sizable mass of white stuff between some of the fruit, ‘this bag has some mold in it.’ i thanked her and took the grapes but then said ‘oh this isn’t mold, that’s spider silk!’ i moved the grapes around a bit and exposed a bunch of eggs and the momma. the customer was a bit disturbed and said ‘that’s even worse!’ lol
but YES upload such an observation but definitely list any sourcing information you can. i’d probably set the location to my home and obscure it (i’d probably set it to casual anyway)