definitely looks like a spring, trouble is when they go the speed sensor wire and brake hose clipped into the damper bracket get landed on by the spring with the weight of the car behind it, the coils at the break point are usually wider than the perch the bottom of the spring normally sits on, so the spring drops right past hence the lights as the wire gets trapped/strained, and it will leave you at risk of brake failure, because the hose may now be supporting the car, if it doesn't give it could still hold the brake on or reduce its function as it'll work like a hose clamp,
basically, I wouldn't drive on it like that