Multiple issues

(S sedan). I left my headlight switch on over night. Well now my car had a red car flashing with a key symbol flashing. Well I unhooked my battery to restart the ECU. Well then car will not turn over to even light up my dash board, my headlights will not come on, nor my radio. My seats do not automatically move like they usually do, but my lights come on when I open car door an my gear shift light lights up the gear I am in which is park. My steering wheel is locked an brake kind of hard to push down also. So a start was I am guessing key fob needs to be reprogrammed, but can do it until I get dash board lights to light up. When I hit push start for it to turn over for it to light up then start when I hit the brake but it is kind of hard to push down.