Theres a meeting 6 blocks away but I can't drive & will look silly riding my bike there.
Probably not half as silly as you looked stumbling out of the bar . . .
If you want to go to a meeting you can get there. Walk 6 blocks, I've done that hundreds of times in your town (and in the middle of the night, in the dead of winter, during cab strikes, etc).
It sounds to me like you really don't want to go to a meeting very bad. But you do want to go back to the bar and talk to the owner in to barring you from the place. It's not the bartenders responsbility to keep you sober. If you want to know who's responsibilty that is, look in the mirror.