At one point, one of the refs had to duck out of the way of what appeared to be a flying water bottle aimed at the guy's head!!
In fact, things got so bad, the PA announcer had to get on the mic and tell fans to NOT throw objects onto the field.
Of course, Saints fans are still bitter over the way Sean Payton's squad was booted from the playoffs in the NFC Championship Game against the Rams last season ... when a crucial defensive pass interference flag wasn't thrown there.
For their part, the refs defended Sunday's non-call ... with VP of Officiating Al Riveron saying, "There is contact by both players, but none of that contact rises to the level of a foul."
Riveron added, "This is consistent with what we've done all year long, we left the ruling on the field. We let it stand."