Never had experience with bed bugs, but we just spent a week in Florida near Panama City. Woke up with bites on us, very itchy. We figured it had to be sand fleas or something like that. We got some Raid bug killer and sprayed everything down in the bed room area, including inside the pillow cases, sheets, the mattress, the carpet on the floor. Well, the smell was better than the bugs. We did not get any more bites after that.
Then, on the ride home, at the end of the first day, I noticed my ankles were all bit up. Where did THAT came from. Figured we had the same critters in the carpet in the truck. You guessed it ... I sprayed every inch on the truck inside and shut the windows. No more bites.
So .... if you just spray everything down with a good bug killer, or set off a couple bug foggers (in a small camper 2 foggers will kill the dead flies!) chances are, you'll kill the bed bugs. And save yourself the cost of a fumigater.
Remember, after about 2 weeks, you need to repeat it in case there are eggs, to kill the hatchlings before they mature and start reproducing again!
$6.00 or less for a couple bug bombs is a lot cheaper than a fumigator!