Apple devices won't unmount after they are unplugged, plugging in again causes windows to appear that don't respond to user input

[Chris Shula]

Version: Linux Mint 17
What I did: I simply plugged in my iPhone to charge it and then unplugged it after Mint recognized it and the Autorun windows popped up. I then disconnected my iPhone and reconnected it later.
What happened: Well, a couple of things. First, when I unplugged, the Autorun windows disappeared, as expected. However, the real problem lies when I plug the phone back in. I plug it in and Mint tells me, "Location is already mounted," and that window, along with the Autorun windows, will not go away. I have to restart my computer in order to make these windows go away, or remember to unmount the drive before disconnecting (which can be hard when using the computer simply for USB power).
What I expected to happen instead: I expected these windows not to show up and for the iPhone to unmount automatically when I disconnected it. There are two partitions (I guess they're partitions?) that should have unmounted upon disconnecting: The main partition and the Documents partition.
This problem always happens with the mentioned steps. It also happens with my iPod Touch.