So, predictably, understandably, but mildly disappointingly, wedding parties are apt to continue for more than one evening, and this proved to be the case for my potential hosts in Ben Tre.
Checked out and ready to go at 10, Tin text to let me know.
My Tho is already pretty off-track, and I thought Ben Tre might be putting myself in a bit of expensive back-tracking territory, so I opted instead to head for Can Tho or Vinh Luong instead, which at least are then on the road to Ha Tien and the Cambodian border.
The hotel got me a taxi to My Tho bus station, where I was then informed that no buses ran from there to - well, anywhere other than Ben Tre or Saigon. Everything else just stays on the highway.
So I hopped on a moto-taxi (yes, they all have spare helmets for passengers, and everyone wears them), and my friendly moto-driver stood with me by the side of the highway, waving at every passing bus from Saigon that was headed in the right direction.
200,000d (ouch! about 8 times the price it would be for a ticket bought in Saigon) got me bundled onto a minibus with a lot of waving and shouting, and we sped off along the highway with me trusting I'd end up in Vinh Luong at the end of it. An hour later, at a seemingly popular rest-stop along the Hwy 1A, I was called from the bus, and placed on another with no driver, and where the existing passengers shook their heads when asked if it was going to Vinh Luong. As my previous ride headed off in a cloud of dust, however, I just had to trust to the general experience that Vietnamese will get you where you're going one way or another. To be fair, all the assistance justifies the extra pennies in my book!