It would be a good idea that you educate yourself on BAC and the quantity of drinks that will affect it. Will save you headaches in the future.
I'm pretty sure all literature says to not use any products with alcohol in them due to them interfering with the results. But two fails in a row is bad. Plus, the mouthwash starts to dissipate as soon as you spit it out. so your initial fail would have had to been within a few mins of spitting it out, then if you waited 5 mins to try again it should have been fine. But swishing with water can help you out
I'm pretty sure all literature says to not use any products with alcohol in them due to them interfering with the results. But two fails in a row is bad. Plus, the mouthwash starts to dissipate as soon as you spit it out. so your initial fail would have had to been within a few mins of spitting it out, then if you waited 5 mins to try again it should have been fine. But swishing with water can help you out