a city full of unavailable options

i don't want to go home tonight. not yet. but there seems to be no alternative. both the bookstores i enjoy spending time in are busy with events tonight, and i don't have my gym clothes to be able to stop there instead. i asked some of my coworkers if they wanted to grab a drink and play pool, but they both said not tonight. one of them said possibly tomorrow, which i would like, though i have pottery class. the other scoffed at me, which makes me think 'not tonight' should mean never. i don't understand scoffing. it's not a reaction i have to other people. it assumes a preposterousness to the initial inquiry.  as a reaction, it's like the mirror of 'whatever.'   
most of my department is out for various reasons, as well, which is difficult. i am again without a supervisor and will be for at least a week. i've yet to fully adjust to the changes in scope and aim for my position, so not having guidance is fairly stressful. it's not that i don't have an idea of what needs to be done; it's that i don't always have access or authority.