Postgres copy data with \xYY as plain string instead of interpreting as encoded string

Question

I have a log file full of URLs, generated by Bro IDS.

When Bro logs a URL with non-ascii characters in it, it inserts \xYY where YY is the hexadecimal character code. Also, some URLs contain "\x".

Is there a setting or flag I can use with the COPY or \copy command to stop postgres from trying to interpret these string sequences and just put them in the text field as is?