Can I Write A Personal Cheque Today But Dated For Tuesday And Get It Cashed Today?

i lost my bank card waiting for it to come in the mail and need to get groceries and baby stuff didn’t make it to the bank yesterday had to work late i have funds in my bank that are on hold just waiting for mail to get to where it needs to go so they can sign papers does anyone know if you can write a postdated cheque on a sunday in Edmonton, AB and get it cashed? if so please let me know our family would be ever so grateful im looking to write a cheque for bout 300-400 if possible