i got home about 10 minutes ago, i passed his car just as i got to my drive and did a little double take as didn't notice him at first. now from my window i can't tell whether he is sleeping or...
he's been in exactly the same position for all this time, although i thought i saw movement a little while ago i then realised it might have been cos i was crouching lower and i'd moved my head.

there have been ambulances at the house next door a few times while i've lived here, not for a while though.
should i go knock on his car door window and see if he responds/check he is ok? he might just have fallen asleep, im sure he's not like, rolling a cigarette or anything cos i have seen absolutely NO MOVEMENT. what if he's dead? or needs immediate medical assistance? how long should i wait for him to move before i go check?
i think he's a bit grumpy so im worried im just going to get shouted at for waking him up/making an idiot of him but i feel a bit sick here sat doing nothing.

help!