Maybe you do need to be somewhere safe though? If you feeling that SUI...

Personally, I think having a safety contract that includes calling a T is not that good- you need to have more and more reliable steps there. They can't be there for you 24/7. I think calling a T could be on your safety plan but it can't be the main thing and it can't be the only thing.
You called on Fri- that's not that great, whole weekend ahead of you... Can you keep yourself safe?

BTW, my T made me promise to call him too if I was about to do stg stupid (my term for SUI)- so maybe it's a weird Ts thing? Like for legal purpouses? IDK...