I sure wouldn't have either. I hope that works for you. You might also dry the top really well, & then rub it with barely a tiny bit of cooking oil, so the water slides off better. By now, there might be tiny mineral deposits that drops could stick to.
As I said before, I've hatched plenty of snake eggs but never BPs. BP eggs apparently need more warmth & humidity than the eggs I've worked with, so myfor all that you have to go thru.
My methods with colubrid eggs were very low-tech- The clear plastic wrap let me see what was going on, & the tiny bit of condensation next to the pin-holes told me I had the right humidity- any more condensation than that & I opened it up for a while to air out.