Once there’s a visible spot of mold (unless it’s something really solid like a hard cheese in which case it’s okay to scrape off about a cubic inch worth below/around/including the mold and eat the rest), the food is already full of mold spores and is not safe to eat. Think of how soft and porous things like bread and fruit are; if you can see mold, there’s tons more inside that you can’t see. When in doubt, throw it out.
Even things that are supposed to be kept cold but are left out, like the bacon, can still be dangerous if fully cooked. Any bacteria on the bacon would likely be killed by cooking, but since the bugs would have started reproducing at room temp, their metabolic byproducts would build up and those are often toxic (and aren’t always dealt with by cooking).