I did exactly the same thing and freaked out too until I figured out it used the same mechanism to release...It just was a tad tricky because you don't have the cylinder to guide the device in with.

__________________
2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k