Brexit Gib

Remaining factual and not political, what problems (if any) are being experienced since Brexit started.
I'm hearing stories of Spanish naval vessels in the rock's waters and a Spanish border guard waving his gun at people passing the border, along with enhanced security checks causing large tailbacks.

Is any of this true and what else is going on over there?

As a note, the thread is intended as a source of first hand information for expats or potential expats over there, not political as such.

Spanish naval vessels have always crossed into Gibraltar's waters, its just since Brexit its in the news more.

Spanish incursions into British Gibraltar Territorial Waters are always in the news but not reported so widespread as the most recent ones post A50.