... and rocking back and forth, and patient pushing ...Rocking back and forth: Running forwards and quickly backwards, repeat ad naseum.
Patient pushing: Just go in a direction and even though you seem to stop, keep "pushing" in that direction. If you see gain a little after 15-30 seconds, keep it up. If you are not gaining, turn slightly to one side.
I've been behind the bar before, and I know I got out out somehow.
If nothing else, camp and hope for a combat to start up ... or attack He'Li or anyone else that might be there. Don't kill them, just try to get away .. then come back to appease them.
Tools for Wizardry(r) 7