The people that suggested call the insurance are right. Make sure that any additional damage is stopped (put a saw horse or something under it if it is still tipping) and call the insurance, maybe even call your local police if it is close to a neighbors fence or house - better to have a report to go back on should anything additional happen.
If you try righting it yourself the insurance company can deny or reduce the claim as they can come back at you with "only minimal damage was done on tipping and we will cover that, the rest of the damage was caused by the policy holder trying to right it himself".
Finally take some pictures of the unit, all sides and where it was located. Always good to have documentation.
Hope it gets righted and repaired before camping season.