Mobile business (food truck/trailer) legalities, question.

Is this the right place to ask this? Please let me know if not or if you know of a more appropriate place.

I’m thinking of starting a coffee truck/trailer. I live in a very touristy small beach town with two ways out/in and one of those is very popular with tourists on the weekends and commuters on the week days. That road has multiple small fruit stands (owners own the stand and land) on both the way in and out of town.

Ideally, I would get to know the fruit stand owners and make a deal to park my trailer at one on the way in to town on weekend mornings (people going to the beach), the opposite side of the road on weekend evenings (people leaving after the beach) and then headed out of town for commuters on week days.

Where can I find info about if this would be legal (making a deal to park essentially a “food truck” on private commercial land, though it might be zoned agricultural land which might be why they don’t already do this!)?

How could I start this?

Any tips, ideas, links would be very appreciated.