Also, our arena can get very crowded too, but most of the gals don't mind if I set up the poles anyway, as long as I am willing to share the space for them to go over as well. Most people like having ways to mix up their rides and are very open to trying each other's ideas. Always ask first though and if they aren't into it try it next time someone is fine with your poles!
Ha! I thought people were going to be bummed that I put poles all over the place. Instead it backfired on me and now everyone uses them for their warmups too! Glad it's working for others.