"My local bike shop moves. And its arena followed!"

#PokemonGO: Hey,I do not know if anything similar has been reported yet, but I think stops and arenas work a bit different than I thought they'd do. I assumed the positions are fixed with certain coordinates, but when my bike shop moved about 50m down the road its arena also moved with it - a bit slower but it moved. The shop has been there for about half a year and within the last week the gym decided to join in.Has anyone else seen something similar? Are the Ingress portals maybe not fixed to certain coordinates but sometimes also to adresses of their respective object/building?Edit. Gym not arena. Mb via /r/TheSilphRoad http://ift.tt/2gTSQKL