hi
1. You can't apply for BOWP at a Port of Entry. http://www.cic.gc.ca/english/resources/manuals/bulletins/2013/ob485A.asp
Please note the following foreign nationals do not qualify for a bridging work permit:
Foreign nationals in Canada under section 186 of the Immigration and Refugee Protection Regulations (work permit exempt) situations.
Foreign nationals who have let their status expire and must apply for restoration in order to return to temporary resident status.
Foreign nationals whose work permits are valid for longer than four months and/or already have a new LMO that can be used as the basis for new work permit application
Foreign nationals applying for a bridging work permit at the port of entry.