leaf on the wind

In light of the recent cowardly attacks some venues are stepping up security, and rightly so. Will this affect props? The last event I went to they were fine with staffs, weapons and other items within sensible limits, but the one before that they stopped umbrellas and toy pistols. I have a signed flag from Firefly and want Alan Tudyk to sign it in July, but the wooden pole it's mounted on is 1.5 m long. Ok on all sites, but you can never be too sure. One place changed the rules the morning of the con.