The answer to 'how did emergency pest control get in my house' is that there are several common causes for pests to invade a home, including cracks or openings in the home's exterior, food sources left out, and moisture problems. Symptoms may include seeing the pests themselves, droppings, or signs of damage. The best solution is to identify and address the root cause to prevent future infestations.
If you're dealing with an emergency pest problem, it's usually best to call in a professional pest control technician. They have the expertise and equipment to quickly and effectively eliminate the pests and prevent them from returning. DIY pest control methods can be effective for minor issues, but for serious infestations or hard-to-reach areas, a professional is often the best choice.