How much can you be liable for an at fault accident with 2 parked cars. Your coverage is 5K liability and you estimate the repair cost to be 15K. Will the other guys insurance companies go after me?

Your financially liable for all damages and associated losses. Whatever that amount happens to be. Your insurance policy will pay up to it's policy limits.
Your financially liable for all damages and associated losses. Whatever that amount happens to be. Your insurance policy will pay up to it's policy limits.