Hey, I had the same problem, like Brandon said cut a hole from the underside.
I made it a little less of a repair I drilled a 3/8" hoie in line with the release from the underside only to have a quart of water run in my face. I then used a 18" flat blade screwdriver to push the release open. I left the hole, now called a drain hole so when you wash your car any water will flow out to the ground.....
Give me a yell or a email, I will stop by with my car on the weekend..
