World.get_level_bbs() gives the same location for all the objects


I was trying to get the Roadlines positions around the car in order to use them as input to validate a trajectory generator algorithm. So I thought I could use the new get_level_bbs() function, but all the objects I get have the same location. Here is a simple test I was trying out:

Roadlines =
points = []
point = Point() % This is a Ros msg whith x,y and z as float32
point.z = 0.0
for rl in Roadlines:
point.x = rl.location.x
point.y = rl.location.y

Is there something wrong with the way I treat this Data?

Thank you in advance