Non US resident trying to insure my truck camper without a permanent address

I am currently purchasing the truck camper, but all insurance quotes need a zip code. I have an address I can use, but it needs proof of garaging, which I dont have as its a retail/park site and we will be on the road and not leaving it unattended.

Nearly all insurance companies require an address for insurance purposes. If you have a friend's address where your mail will be forwarded, this could work. We have agents that should be able to help you at 888-444-8949 and speak with an agent.