This camping spot allowed?

Or does it already count as glitching? Started thinking about when, when I saw myself in the replay sniping someone through that metal door


(If you wonder where I am: Factory TD, near BL spawn)


So...am I allowed to camp up there? Sometimes you are stuck up there and I made it once to lock myself in the metal cage under that spot :<
(Yes, you could say I accidently glitched into that metal cage, which is teh uber h4x, especially if sniper only match, which means you're captured in there, somewhere where GR wont be able to free you too easily (who the heck would expect someone to be that dumb and glitch into that thing?))