Enter/Exit Icon

I'm working on badge reader app. The app will be installed in PDA device (Android OS). The PDA will be used by more than one person. The main screen show the gate direction (animated icon + color association) because if some user pick up the device or pass it to somebody else, that user know the gate direction.

Another complication is that the user might be not attend school. That's why the client ask to add color association in addition to SIMPLE icon).

I made two animated icons: entrance and exit but the client told me that the icon's meaning isn't clear and he asked for a changed version.

That's fine for me but the problem is that I don't use custom icons, I proposed very simple and common icon (I choose them from material design icon pack) door with arrow that go in or go out. The client ask me to invert the orientation of the door because that will help to understand the meaning.

I've already explained that this request will increase the possibility of a misunderstanding or confusion, because the icons would be very similar but I can't prove that with a test or a documentation. I've also proposed another icon version with the door "more open".

The client request for me is totally incoherent (this isn't his work) but I don't know how to explain it further. The icon colors are already arbitrary and need training, I wouldn't embrass the real user.

Anybody could help me? Should I give up? :)

I attach a image that show what the client want. I hope that I have succeeded in giving enought information!