The link is in my signature. I've added a description to the signature.
Any magnet operated by any switch will lock it shut.
https://www.amazon.com/Holding-Elect...547692&sr=8-14
This one holds 132lbs.
If you get all wild it could lock and unlock with the ignition so it opens automatically when you park.
No climbing, no pole in the rain and the associated discontent. No forgetting.
Add the wireless remote control that IS in my signature link and it gets even easier.