Yikes. Bedbugs are bad news. I once slept in a "hotel" in SF that was littered with them. I went and got trash bags and covered everything I touched with plastic. With some careful quarantine procedures, I miraculously didn't bring any back.
If you haven't already tried: bedbugs don't handle heat too well (eggs neither). They are weaker than pets and babies. You could stuff all your possessions into a car, seal it up, and park it in the summer sun somewhere for an afternoon to be rid of them. The ones in the car at least.