2018 Dodge Grand Caravan wont start; red dot on the dashboard.

I left my 2018 Dodge Grand Caravan with the
key turned (not cranked) while I was listening
to music and vacuuming my car out. The
radio turned off first, then all lights shut off
and a red dot is showing on the dashboard,
now it won’t start. I know the red dot is part of
the anti theft system, but I don’t know how to
turn it off or why this would’ve happened from
leaving the key turned?