I had a rehash of just this with an attorney friend last week. One suggestion he made was to politely, in a non-confrontive tone, ask the officer exactly what law you would be breaking if you took a shot or continued to shoot?
"If an arrest is made or a summons is issued, there must be a statute cited, every officer knows that." ... was close to the exact quote.
This got me to thinking ... (dangerous, I know) ... IANAL by any means, but is it breaking any law for an officer (or a security guard) to knowingly misrepresent the law by falsely stating that something is illegal when it is not?