Depends where you are.
Many years ago i was fihsing with a mate, came back into Spinnaker boat ramp near Bribie, another boat pulled in beside us. Anyway to cut a long story short he soon realised that his trailer had been stolen.
He was lucky enough to find that the marina beside the ramp was open and arranged for them to retrieve his boat on their forklift and store it in their yard on blocks while he sorted things out with his insurance company. I dont know whether insurance picked up thetab for that or not - you would hope so!
Without access to a marina etc you would have to try to borrow a trailer from someone, or hope you could at least tie it up to a pontoon behind someones house, or otherwise get the boat to some kind of secure area or try the tilt tray option as mentioned baove, while sorting out something with insurance. Wouldnt be fun at all.