I love FreeBSD so much more every new day §8-)
Don't let you WPA password sit in plain text in /etc/wpa_supplicant.conf
Use the wpa_passphrase(8) tool to encrypt it and to get the config:
wpa_passphrase yourwifiname yourwifipassword
You get:
network={
ssid="yourwifiname"
#psk="yourwifipassword"
psk=3a1950109e0a6bf36a0bc27171a14e94c6cf36c9d9ecef406b3326122b5db536
}
Check out:
https://stevengharms.com/longform/my-first-freebsd/installation/part-4-wifi/