Probably an overgrown model rocket launched by some stupid kid. A real AA missile wouldn’t miss.
Neither would a surface-to-air missile. With the borders we have open, one shudders to think of how many shoulder fired SAMS have made it across the border, just waiting to be used.
The USSR has an abundance of these:
On the top a SA-18 (Igla) missile, launch tube and grip stick. Below is a SA-16 (Igla-1) missile and launch tube.
American Airlines plays hardball with the competition.