get it towed home
drain the oil & change filter
drain the transmission and tcase. refill with 30w to 50w oil (the cheap stuff)
remove the coil wire, ground the coil to the body (prevents a shocking experience and/or fires)
remove spark plugs
crank starter until all water is out
heavily spray wd40 in all cylinders
crank again
install plugs
refill with cheap oil (10w something)
replace coil wire
make sure all fluids are up
raise rear off ground
start motor
let idle for until warmed up
shut off
change oil and filter
repeat last 4 steps until all water is out. last change should be a high quality oil in the spec given in your FSM.

drain diffs
refill diffs
start and drive the motor about 2 miles
drain trans and tcase. refill as per your FSM
check the diffs for any remaining water in them

in addition you may want to:
remove the distributor cap and wd40 that too (let dry then reinstall the cap).
pray to the toyota gods you didn't bend a rod and/or shatter a piston.