Before using the tennis ball, think I'd shoot a little graphite in there. Also heard you can call with your cell to someone who has the lock/unlock part of your entry system, they hold it up to cell phone while you direct your cell phone at door lock, he presses unlock, door unlocks. I know it works at 50 ft, not sure of other distances.
Meet the drop-resistant Moto Z2 Force
The Moto Z2 Force is really thin, with a fast processor and great battery life. It can survive drops without shattering.