At oil temp

I recently took my 2001 Subaru
Forester in for an oil change at
valvoline quick lube express when I
pulled up and they checked my levels
they said my transmission fluid was
low so they topped it off and went on
with the rest of their signature service
oil change when they were done and
gave me back my keys to start my
car and leave it wouldn’t start. I have
never had any issues like this they
after trying a few more times they told
me to wait 15 to 20 min for it to cool
down after waiting we could get it to
start but roughly and only if I revved
held my rpms above 2500 then they
had me hold it there for a little bit and
it blew my seal n spent transmission
fluid onto the exhaust making my car
smoke after that they pushed me out
to a parking lot space and gave me a
# to call their claims department  I
ended up using aaa to get my car
home but I still have the AT oil temp
light on and same issues and don’t
know what to do.  Any advice would
be greatly appreciated