we did a trip on short notice and could not get in without a visa so we positioned to jerba overnight.
if its just a drop off no problem with visas but make sure you get a handling agent or you will be led from office to office paying fees in dollars and lots of crazy forms.
we used hadid who were crap as they didnt turn up for our first arrival hence the hassle. on our final departure they did show up and the transit was easy.
good luck