I found it scandalous that I am forbidden entry to...

I found it scandalous that I am forbidden entry to the park with my handle for gopro under the pretext that unfolds 10cm and suddenly likened to a perch .... especially as arrived in the park other people in front of the real 30cm long .... especially since this prohibition is not indicated anywhere, so after taking three quarters of an hour to arrive at the parking I have to return to my parked at the other end of the parking lot to leave my handful. .