Here is my bicycle garage parking I've made couple years ago.
(I moved the construction outdoors to take bright pictures)
All glued wood will park 4 bikes.
You can built according to your needs.
Just ride your bike front wheel thru it and leave there, it will not roll back.
As I said this is a 2 years old project and I only have the finished version.
Here you can see detailed construction pictures.
Notice, once parked the bike will not roll back and you have also a rack for you helmets and other gear.
Greetings to everyone!