I had and never have seen anything like that during my concert going years.
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I have.... to a lesser extent than perhaps the concert you were at, I saw that happen when Stevie Ray Vaughan opened for Dire Straits. There was nothing wrong with Dire Straits.... it just took about 4 songs before folks started to settle down....
I saw ZZ Top as the lead in for Deep Purple and (if memory serves) Blue Oyster Cult at the Tampa Stadium around 1972 or 73.
It was their first Florida appearance. Heavily booed. The other two were outstanding.
There were some great shows there until the Led Zeppelin riot, then no more rock concerts after that.