Yep, definitely caused by low windshield wiper reservoir fluid . Welcome to the forum - always good to have someone with lots of prior auto experience come on board. I'm sure you have more background in this stuff than I do, but I'll ask one question anyway. Did it restart both times right after you fiddled with some wiring? If so, maybe there's a corroded, partially broken, or exposed wire somewhere. If you were pushing on fuses, maybe one of the wires running to the fuse box?