Replying to If i go on the mountain when its closed will i get in trouble?

okay so my local mountain... seymour.. is closing tomorrow with a 550cm of snow still sitting on it..if i go in the park and sess. it will they kick me out or will i like get in any trouble... or what if i go hike the BC and build myself a booter or something will they like tell me to get off the mountain... i've never done this before but plan to do this next weekend..so gimme input on your experiences and thoughts