by way of anecdote...
...back in my scuba instructor days I trailered a 20-foot Hurricaine--a rigid inflatable with a 120 hp. outboard--down to the Sea of Cortez, where I launched it off the beach in Bahia de Los Angeles. A few days later I ran into town to see whether fuel was available. I was greeted there by the Capitan del Puerto, who expressed concern that I was not flying a Mexican courtesy flag from my mast. I apologized profusely, explaining that the boat did not have a mast, whereupon the capitan kindly offered to sell me a flag so that I would not have to pay the fine. It cost roughly double what it would have cost had I bought it back home at West Marine, and I quickly strapped a boat hook to the starboard side of the steering console, affixing my new courtesy flag to my new mast with nylon cable ties. Lesson learned.
...back in my scuba instructor days I trailered a 20-foot Hurricaine--a rigid inflatable with a 120 hp. outboard--down to the Sea of Cortez, where I launched it off the beach in Bahia de Los Angeles. A few days later I ran into town to see whether fuel was available. I was greeted there by the Capitan del Puerto, who expressed concern that I was not flying a Mexican courtesy flag from my mast. I apologized profusely, explaining that the boat did not have a mast, whereupon the capitan kindly offered to sell me a flag so that I would not have to pay the fine. It cost roughly double what it would have cost had I bought it back home at West Marine, and I quickly strapped a boat hook to the starboard side of the steering console, affixing my new courtesy flag to my new mast with nylon cable ties. Lesson learned.