Congratulations on your new rig, we have had our 398 V since January and absolutely love it. 377v was my second choice but I needed the extra room in the hauler for my Ranger Crew. We hook up and head out if we have a spare weekend, even if we are close to home.
Just like you, we get the crappy looks when pulling in to load and unload. We are more than considerate to the neighbors, never more than a few hours or so and never over night. I have been the the nice guy and let the neighbors know that I would be on the street for more than that and to let us know if we need to move it.
Recently, a neighbor now leaves their extra vehicle in the street where I park the trailer, which is directly across from my house, ( I think purposely) at all times and I cannot get in and out. It's a bit of a pain but I have learned to load, unload, and clean in my storage spot and it forces me to go ahead and knock it out. I cant wait for the day to roll it into my shop just outside of my home.
My biggest additions so far are ceramic tinting the windows and my hard wired 50 watt surge protector, don't plug in without one.
Wish you all of the best and let me know if I can ever help, see you down the road!