If you have any doubt, use your sense of smell and touch to see if the hot dogs should be tossed. If they have a sour smell or are slimy to the touch, do not eat them.
If you won't eat the remaining hot dogs within a week, freeze them. They will stay good for up to two months in the freezer when stored in a freezer-safe container.
For safe thawing, place frozen hot dogs in the fridge for 24 hours. If you're in a rush, submerge them in cool water for around 30 minutes, ensuring the bag remains sealed.