I support recording it, and getting identifying information (license plate, number of people, descriptions). But I don't think I'd call 911.
In Oregon you can contact one of these groups:
1) OR DOJ, Sanctuary Promise Violations Hotline. Details:
2) Portland Immigrant Rights Coalition (PIRC) at 1-888-622-1510
3) United We Dream, 1-844-363-1423, or text 877877
Community toolkit: