Where I live, Long Island, New York, you'd barely get out of your garage on
the trike without someone trying to run you off the road. When I ran my
bike recycling program a few years ago, I had the opportunities to test ride
a few trikes AND a quad. I thought riding the quad on the main street
running through my town might raise some awareness of alternate
transportation options, so off I went...only to return ten minutes later
having been honked off the road and forced onto the sidewalk more than a
dozen times.

I guess the answer to your question is largely dependent on where you live
and what the attitude toward cyclists is in that area.