No, there absolutely could be no sufficient evidence to prove God. Burning talking bushes: "Where's the tape recorder, and who would burn a perfectly good bush?" Walking on water? "Seen it on TV."
And EVEN IF something totally inexplicable happened, you could go with advanced technology (or even an alien interaction) before going to the idea of God.
And EVEN IF something totally inexplicable happened, you could go with advanced technology (or even an alien interaction) before going to the idea of God.