Throw the summons in the trash. Not certified, it didn't happen. When I arrived for duty once I was told by the court clerk that they expect 30-40% of the people to show up.
I'm. It trying to say that people are not or should not be responsible for their civic duty, but there are many situations that supersede that duty and yours in my opinion(not an attorney) warrants excusing you from duty. Good luck.
This.
Nothing will come of it.