I used the "hide the remote" method for many years...until I purchased a pair of cars with the built-in HomeLink buttons on the sun visors. Since then, I use a plastic, magnetic, "STOP" sign that's about a foot in diameter. I have to back the car/van out of the garage to put the bike on top. At the same time, I stick the STOP sign to the outside of the garage door (I placed several iron bars on the back of the door for the sign to stick to). When I come back, there's the sign...big as life.
Works for me.