re: Garage parking sensors

I have a similar situation where the garage isn't much larger than the car. Once I was creeping into the garage and felt resistance, car didn't want to go any further. I didn't think I was touching the wall but figured I must be wrong. Turned out there was a thick door mat I hadn't seen on the floor and the front tire was against it. The car was less than 2 inches from the wall, nearly perfect so I left the floor mat there and use it as a wheel bumper.