I had a co-worker who's dad is paraplegic, and they had a family van with hand controls, so that his dad could drive it. His dad was a big guy and his mom was tiny, but she could load and unload the wheelchair without a problem. My co-worker said that sometimes people would stare when his mom was pumping gas, while his dad sat in the drivers seat doing nothing. He said they had a bit of a routine where his mom would start washing the windows and his dad would point out spots she missed.
They totally did it to entertain themselves, but I'm sure it got a few people riled up thinking that the dad was a jerk.