Applying a transparent image over the mapview fragment seems to resolve the issue. It’s not the prettiest, but it seems to work. Here’s an XML snippet that shows this:
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="300dp" >
<fragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.MapFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<ImageView
android:id="@+id/imageView123"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="https://stackoverflow.com/questions/13746351/@drawable/temp_transparent" />
</RelativeLayout>