Is it possible to know if the trunk is open?

Somehow I managed to unintentionally open my trunk late last night (I still don't know how but have theories) and it remained so all night and much of the day until a friend mentioned it. 

I get unlocked door alerts and window down alerts via TeslaFi, but I don't recall getting a unlocked notice for this situation. Am I right in assuming the trunk can be open while still in a locked state, therefore not triggering this rule? I don't see any rules I can create that seem to be based on door / trunk / frunk open on a Model 3. 

Any way to guard against this with an alert, or does this scenario fall between the cracks?