If yyou can go to Nass, then go. If not, offer up your work with the children for the suffering souls and try to read the Mass readings.
US employers generally don't honor Catholic Holy Days except when it benefits their bottom line. I'm in a similar position as a teacher of special needs children for whom a substitute is upsetting, however sdll-qualified. My hours tomorrow are from 6:45am to 7:15pm with all "breaks" on location. I never hear Mass on Holy Days that fall during game the work week because there are none early or late enough close to my job. In fzct, Mass is a rare treat, as are receiving the Sacraments. I'm either at work or attending to necessary care of family members. The nearest traditional Mass is simply too far away and at hours impossible for me to access.
I came to the conclusion three years ago, All Saints Day, that if I wanted to save my soul, I'd have to do it without the help of Mass, priest, Sacraments, and fellow Catholics. This is hardly ideal, but it's the best I can do until God sees fit to change my circumstances.