Thanks everyone! After soaking, breaker bar, cheater bar. Nothing worked. Brought it into work, a co-worker was a bike mechanic a while back, couldn't get it moving either, so he brought in the bug guns; and impact gun. Popped off in 10 seconds. Luckily my FLBS did in fact provide the correct replacement with a lucky guess. Just have to pop the cranks back on and I'm riding home tonight!
thanks again for all your help