rear side window screens
 

So the other day we had one of the side window screens up and it wouldn't retract all the way back down. I noticed that somehow a coin was down in it and was hitting a rubber piece on the screen stopping it. Does anyone know how to fix this or take it apart to get the coin out?

if you can see the coin, could you not grasp it with a hemostat and retract said coin??

Wire Coat hanger bent on the end with tape

The slot it fell into is just barely wider than the coin and it laid flat. I think it needs to be taken apart, how do you take off the rear side doors to get to this area?