Depending on the vehicle, there is probably a way to disable them within the software. I've used Forscan to modify some of my trucks configurations and I believe DRL is one option that can be changed, though I have never looked for it.
When I was regularly using a kayak, I would park then carry my kayak (a 12' Sit on fishing one) to the waters edge. I would not block the boat ramp. I don't need to use the ramp necessarily so why block it from the boaters.
Now I've also had boats pass by at high speeds and nearly tip me over, did they see me and was it intentional? I don't know, but it seems that there is a general lack of respect across the board when it comes to people who want to enjoy the water.