It's a bummer to hear about the parking situation, especially with careless neighbors. Having a camera system is a smart move.For reliable options, you might want to check out qztsecurity.com. They offer various camera systems that could work well for monitoring your vehicle. Look for one with motion detection, so even smaller incidents like door dings can trigger it.Living in a place like Boulder, where parking can be a challenge, it's good to have that extra protection. Hope you find a solution that gives you peace of mind and keeps your Sierra looking great!