creating / restoring db dumps with binary data (geometry data)

Question

Here's the command I'm trying to run:

mysql -uuser -ppass --host=website.com mydb < mydb.sql

The problem is that when I restore this backup I get this error:

ERROR: ASCII '\0' appeared in the statement, but this is not allowed unless option --binary-mode is enabled and mysql is run in non-interactive mode. Set --binary-mode to 1 if ASCII '\0' is expected. Query: '��-'.

So I tried this instead:

mysql -uuser -ppass --host=website.com --binary-mode=1 mydb < mydb.sql

That got me this error:

ERROR 1064 (42000) at line 1: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1

I generated the mydb.sql file using mysqldump I tried to do mysqldump --binary-mode=1 but got this error:

mysqldump: [ERROR] unknown variable 'binary-mode=on'.

So how do I create / restore dumps of binary SQL DB's?

Here's the DB schema if that helps:

CREATE TABLE `county_shapes` (
  `OGR_FID` int NOT NULL AUTO_INCREMENT,
  `SHAPE` geometry NOT NULL /*!80003 SRID 4269 */,
  `statefp` varchar(2) DEFAULT NULL,
  `countyfp` varchar(3) DEFAULT NULL,
  `countyns` varchar(8) DEFAULT NULL,
  `geoid` varchar(5) DEFAULT NULL,
  `name` varchar(100) DEFAULT NULL,
  `namelsad` varchar(100) DEFAULT NULL,
  `lsad` varchar(2) DEFAULT NULL,
  `classfp` varchar(2) DEFAULT NULL,
  `mtfcc` varchar(5) DEFAULT NULL,
  `csafp` varchar(3) DEFAULT NULL,
  `cbsafp` varchar(5) DEFAULT NULL,
  `metdivfp` varchar(5) DEFAULT NULL,
  `funcstat` varchar(1) DEFAULT NULL,
  `aland` decimal(14,0) DEFAULT NULL,
  `awater` decimal(14,0) DEFAULT NULL,
  `intptlat` varchar(11) DEFAULT NULL,
  `intptlon` varchar(12) DEFAULT NULL,
  UNIQUE KEY `OGR_FID` (`OGR_FID`),
  SPATIAL KEY `SHAPE` (`SHAPE`)
) ENGINE=InnoDB AUTO_INCREMENT=3235 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci